Cisco Switch Layer News
CISCO: Customers Adopt Cisco Data Center 3.0 Architecture to Optimize ... - TMCnet
San Jose, Calif., Feb 10, 2010 (M2 PRESSWIRE via COMTEX) -- Cisco today announced that Coca-Cola Bottling Co., Salem Hospital, ExamWorks, and University of Sydney have selected Cisco Data Center 3.0 technology to optimize data center resources ...
Read moreQtn: When Is An Ethernet Switch Not An Ethernet Switch? - Computer Weekly
Answer: when it's a power supply. Just released the latest test report for HP on its ProCurve 2520 Ethernet switch - http://www.broadband-testing.co.uk/ReportList.aspx - and the point of interest here is not that it's got plenty of Layer 2/two and a ...
Read moreCisco to unleash data center extensions - San Francisco Chronicle
Front and center is an enhancement to the Nexus 7000's NX-OS operating system called Overlay Transport Virtualization (OTV). This is a data center interconnect feature intended to simplify establishment of those links by extending Layer 2 Ethernet ...
Read moreHitachi inks Xsigo pact for server I/O virt - The Register
Dell doesn't have its own virtualized server fabrics, so it needed ... in contrast to IBM, with its Open Fabric Manager, and HP, with its VirtualConnect for blade servers. And in the wake of the Dell-Xsigo deal last year, Cisco Systems has perhaps ...
Read moreMPLS World Congress - Converge Network Digest
Global HSPA connections have passed the 200 million milestone, according to the GSMA. HSPA connections have seen phenomenal growth in all markets since 2007, and this is set to continue in 2010 with the investment operators will make in Mobile ...
Read moreFibre Channel and the Converged Network - IT Business Edge
For anyone who still thinks that Ethernet "won" the battle for control of the unified network, with Fibre Channel relegated to a mere afterthought, some new developments might help to change that opinion. In fact, it's starting to look like the ...
Read moreJuniper execs share network vision - IDG NEWS
So, if you have that kind of complexity, getting to one network infrastructure and one billing system is a huge, huge challenge ... Yen: A three-layer structure is conceptually very helpful, particularly in the data center. You have access ...
Read moreVoltaire Ltd. Q4 2009 Earnings Call Transcript - Seekingalpha.com
Ladies and gentlemen, thank you for standing by. Welcome to Voltaire’s fourth quarter 2009 results conference call. All participants are at present in a listen-only mode. Following management's formal presentation, instructions will be given for ...
Read moreDigital Touch Points - Communications Technology
Separable security has won no popularity contests, but the experiment has generated changes, such as the introduction of DVB-CSA. Separable security: it remains a contentious battlefield, littered with casualties, competing claims and capital ...
Read moreBusiness wireless service from Allstream by year-end - it World Canada
Manitoba’s phone company will increase its reach into business and government across the country from its home province this year with new wireless and wired broadband services. MTS Allstream Inc. says that "towards the end of 2010" it will launch ...
Read moreCisco Switch Layer Search Links
Layer 2 and Layer 3 Switch Evolution - The Internet Protocol Journal ...The Internet Protocol Journal - Volume 1, No. 2 Layer 2 and Layer 3 Switch Evolution |
Switches - Main Page - Cisco SystemsCisco switches help maximize network value by providing optimal support for business requirements while delivering superior investment protection. |
How to configure a Cisco Layer 3 switch-InterVLAN Routing | CiscoTipsInformation and tips about Cisco systems, Cisco network products and networking technologies |
Cisco Switches - Cisco SwitchCisco ME-3400G-12CS-D Multi Layer Ethernet Access Switch Part #: ME-3400G-12CS-D Switch, 12 ports, EN, Fast EN, Gigabit EN, 10Base-T, 100Base-TX, 1000Base-T + 12 x shared SFP / 4 x ... |
Resolved Question: Design for 100 client network?
4 rooms with 20 Windows XP pro PCS each 4 x Laser printers Wireless available for laptops At the moment i just want internet connectivity i can add a server at a later time. So i guess for the backbone i am looking at some kind of cisco router. Now i think i will either need a subnet for each room or have each room on it's own VLAN? So what equpiment do i need. The key thing must be QOS so that each room, has approx 1/4 of the incoming bandwidth available to them. Do i do the QOS on the router or will i need some kind of managed layer 3 switch? To me it seems as simple as just going, router --->some kind of "backbne switch" ---> 4 more switchs ---> pcs? anyone give me some help? moreResolved Question: Virtual Network software?
Hello, I need to create a virtual network so I do not mess up the live network. I can also use this for studing Cisco exams. I need to be able to upload the configs of my current routers and switch (layer 3 switches and enterprise 6400 routers). What is the best software out there? moreResolved Question: How do I configure a layer 3 Cisco switch to operate at layer 2 only?
I'm working with a Catalyst 2948G - L3. moreVoting Question: How to Block Rogue DHCP Server's on Cisco Equipment Using ACL's?
The CORE RING our our fiber optic network has an IP of 10.150.1.1 in that ring is several dorm buildings. Each building has an address in the ring address range subnet. ie Dorm 2 has 10.23.1.1 this buildings CORE address is setup in a layer 3 cisco 3560. Routes for all traffic go to 10.150.1.1. Our DHCP server in in another building with an address of 10.50.1.200. the CORE Layer 3 in Dorm 2 has a VLAN 2 setup with ip 10.32.1.1 from there there the second set of Gig fiber ports 1&2 are ring in and ring out. ports 3 & 4 are ring in and ring out from the first and sixth floors. all other floors jump from floor to floor connecting 2950's Layer 2. so we have Layer 3 3560 port 1 ring in port 2 ring out port 3 to floor 2 2950 floor 2 to 3 to 4 to 5 to 6 and floor six's 2950 goes back to floor 1's 3560 completing the ring. All the 2950 switches use ip-helper address of 10.50.1.200 in the 3560 and all 2950 switches we have: ip access-list extended block_students deny tcp any any eq 135 deny udp any any eq netbios-ns deny udp any any eq netbios-dgm deny tcp any any eq 139 deny tcp any any eq 445 deny tcp any any eq telnet permit ip any any On only the FastEthernet ports we have: ip access_group block_students in I have been reading on blocking eq 67 and 68 bootpc and bootps I only want to block servers from coming from the FastEthernet ports. What i would like to do without using dchp snooping is add an acl to block just one of the protocols either 67 or 68 coming from the FastEthernet ports. It isnt clear from anything i have read which is which because it depends on which was your coming in from. Could i make another acl and add a second rule on the FastEthernet ports such as the following and if so which would i do 67 or 68? ip access-list extended block_dhcp deny udp any any eq bootpc or ip access-list extended block_dhcp deny udp any any eq bootps and on the FastEthernet ports do ip access-group black_dhcp out? Well what happens is we get new students in every semester and nonavoidable some student connects a WAP into the port in their room but connects the cable into the lan side instead of the wan side. next thing you know students are calling in that their internet is not working, we investigate and they have private addresses from linksys and the like routers vs our 10. scheme. so obviously it is not working. I really just wanted to add a line into the current acl so there was only one acl. i may just create a second and apply it to one port to test. in our panel we only use about 32 of the 48 ports on each floor so i could safely tests a few to see if i receive an ip or not and plug a wap in backwards to see if the floor goes down or not. moreResolved Question: Should the same type of switch be used at each layer of the hierarchical design?
CISCO: LAN switching and Wireless problem moreResolved Question: Which Cisco device I could use to limit the Internet Bandwidth at each port? Do I need a layer 3 Cisco Switch?
I have a 256 kbps Internet connection and several users. I want to put an upper limit of bandwidth usage by the users. I want to implement this strategy in my company. Can you tell me the name of the Cisco Switch which can efficiently do this and also allow VLANs and VTP (both dot1q and isl)? moreResolved Question: This is generic answer.?
About this question: http://answers.yahoo.com/question/index;_ylt=Ap7a1YrVJnAC2E4CBkfdV_IjzKIX;_ylv=3?qid=20080817133112AATuqHl The initial question is about specific information not expecting "it depends" answer. The proper way to answer would be this: Check how many devices you need to connect (this will determine amount of layer 2 switches), check how many ISP connections you will have (this will determine amount of routers), check the budget that company has and study list of products: http://www.cisco.com/en/US/products/hw/routers/products_category_buyers_guide.html. Example of very reasonable solution would be 1 Router 2600 series with 1 FE-NM, one switch 3500 (layer 2). You can mention about approach of having devices from 3 types: Core, Distribution, Access. This should help: http://archive.networknewz.com/2004/0206.html. moreVoting Question: HSRP between cisco layer 3 switch and router?
Hi I have a cisco 2600 router connected to a layer 3 switch on ethernet0/0 and a layer 2 switch on ethernet 0/1 with subinterfaces (router on stick). The layer 2 switch and layer 3 switch are connected through trunk. I want to configure hsrp so that layer 3 switch is actiive router for some vlans and router is active router for remaining vlans? I have created one hsrp group for each vlan on layer 3 switch and router subinterface but this works only for native vlan 1. How should I do that? Please reply ASAP. Thanks in advance. moreResolved Question: help me something plzz.....thanks?
1. In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another? • destination network address • source network address • source MAC address • well known port destination address 2. What information is added during encapsulation at OSI Layer 3? • source and destination MAC • source and destination application protocol • source and destination port number • source and destination IP address 3. In a connectionless system, which of the following is correct? • The destination is contacted before a packet is sent. • The destination is not contacted before a packet is sent. • The destination sends an acknowledgement to the source that indicates the packet was received. • The destination sends an acknowledgement to the source that requests the next packet to be sent. 4. Which IP packet field will prevent endless loops? • type-of-service • identification • flags • time-to-live • header checksum 5. Which portion of the network layer address does a router use to forward packets? • host portion • broadcast address • network portion • gateway address 6. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network? • 192.135.250.1 • 192.31.7.1 • 192.133.219.0 • 192.133.219.1 7. If the default gateway is configured incorrectly on the host, what is the impact on communications? • The host is unable to communicate on the local network. • The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. • The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network. • There is no impact on communications. 8. What is the purpose of a default gateway? • physically connects a computer to a network • provides a permanent address to a computer • identifies the network to which a computer is connected • identifies the logical address of a networked computer and uniquely identifies it to the rest of the network • identifies the device that allows local network computers to communicate with devices on other networks 9. What type of routing uses information that is manually entered into the routing table? • dynamic • interior • static • standard 10. When the destination network is not listed in the routing table of a Cisco router, what are two possible actions that the router might take? (Choose two.) • The router sends an ARP request to determine the required next hop address. • The router discards the packet. • The router forwards the packet toward the next hop indicated in the ARP table. • The router forwards the packet to the interface indicated by the source address. • The router forwards the packet out the interface indicated by the default route entry. 11. What are the key factors to consider when grouping hosts into a common network? (Choose three.) • gateways • purpose • physical addressing • software version • geographic location • ownership 12. What is a component of a routing table entry? • the MAC address of the interface of the router • the destination Layer 4 port number • the destination host address • the next-hop address 13. Which intermediary devices could be used to implement security between networks? (Choose two.) • router • hub • switch • firewall • access point • bridge 14. What are three common problems with a large network? (Choose three.) • too few broadcasts • performance degradation • security issues • limited management responsibility • host identification • protocol compatibility 15. Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown? • 3 • 4 • 5 • 7 • 8 11 16. Which three statements are true about routes and their use? (Choose three.) If no route to the destination network is found, the packet is returned to the previous router. If the destination network is directly connected, the router forwards the packet to the destination host. • If multiple network entries exist for the destination network, the most general route is used to forward the packet. • If no route exists for the destination network and a default route is present, the packet is forwarded to the next-hop router. • If the originating host has a default gateway configured, the packet for a remote network can be forwarded using that route. • If a host does not have a route manually configured for the destination network, the host will drop the packet. 17. Refer to the exhibit. A network administrator is troubleshooting a connectivity problem and needs to determine the address that is used to forward network packets out the network. Using the netstat -r command, the administrator would identify which address as the address to which all hosts send packets that are destined for an out moreResolved Question: layer 2 switches help please?
I'm to write a report on which layer 2 switches would be best out of the companies CISCO and HP but I know it sounds stupid when looking at there switches I don't know which ones are layer 2 they don't say, how can I reconise they are layer 2 thanks in advance:) moreResolved Question: What kind of switch do I need?
I want to plug two wireless radios into a switch. Both radio's have 10mbps throughput to another building. I want the switch that they are plugged into to group them together and make a 20mbps pipe to the other building. I have heard of etherchannel on cisco switches but would this be overkill? I just want to know what would be the most basic switch that could load balance traffic accross and utelise both wireless links for double the throughput. Does the switch need to be layer 2 or 3? moreVoting Question: Cisco and networking specialists, is this true?
I heard that Cisco have so called Cisco Dual Core Layer 3 Router Switch, that is a Switch dose some of layer’s 3 (Router) functions as well as its supplied with Primary/Secondary backup system in case e.g. some of the ports and/or power supply fail the secondary ones kicks in, is that true? If yes where I can find more info about this? Because frankly I am very interested in this idea and yet I am not so confidence of its existence. Thanks. moreVoting Question: Cisco Routering-Switch, how they can be used? for networking experts, please help?
I have a LAN connected to Cisco switch and then to a Cisco router for managing network traffic, so now can I do the following: bring some Cisco Routering-Switch to mange the internal network traffic (traffic between connected nodes) and leave the external traffic (between a node and an external source) to the router connected/located at the end of the topology? So I can reduce the traffic on both the Router and the Routerting-Swtch (i.e. reduce traffic on layer 2 and layer 3). I am not a networking expert but I just wanted to know if such scenario is (1) possible, (2) logical, and (3) practical? Can you name some of Cisco Routering-Switches? And/or suggest some websites where I can find more info about this? Cisco Website is not a big help here. moreResolved Question: Ring topology from a 3560 through several 2950's and back to the original 3560 to complete the ring.?
We have a building which is part of a fiber optic ring around our campus. Each building around campus has a 3560. Cisco Catalyst 3560 layer 3 switches have four mini GBIC ports on the front so we use two of the four for the ring. The particular building I am looking at had (6) 10/100 copper to fiber converters and the first 6 ports starting with port 2 had a vlan assigned to each with its own IP each port went to a converter and each converter to a floor respectively. This floors had 3com 3300 switches with a 100Mb fiber card int he back and then that unit was cascaded to a second unit they were 24 port each to get a total of 48 ports. We have been given budget to upgrade that building to all cisco on the floors so we went with 2950's. The budget was not, however, enough to buy 10/100 to GIG fiber converters or a chasis, 6 card unit. So we decided to run the spare mini gbic on the 3560 to the 2nd floor cisco, and the other spare on the 3560 to the 6th floor 2950 and jumper the 6 to 5th floor, 5th to 4th, 4th to 3rd, and 3rd to 2nd to make a ring out of the whole building along side the other ring from around the campus. the extra fibers have not been terminated yet so the 2nd and 6th floors are only in production now however I took the 3rd floors device ot the 2nd floor and used a fiber patch to see how it would act as if it were in the middle of the ring. bang no address from dhcp. the top and bottom (2nd and 6th floor) are still on vlans in the 3560 and i just assigned the same vlan the next ip up int he range. so do i need to tell thos cisco to operate in trunk mode or do i have to completely reconfigure or can it be done at all? !amtheKing, CLEARLY you ARE NOT the KING plus you have no idea what your talking about. I have a CCNA, however I do not know everything, that's why I am asking. What I am upgrading is currently in production so I cannot just try something and break it for the hundreds of students coming to our institution at the moment(dorm rooms and a whole building with 6 floors). I would like to know something definitive so I know that it will work BEFORE I go fumbling with it. We have a fiber optic ring around campus passing through Cisco 3560 layer 3 switches(with routing function hence layer 3) in each building. The building in question has problems almost daily with the old equipment so we are going to cisco 2950's on each floor rather than 3com 3300-24 ports cascaded 2 to a floor. The somewhat knowledgable boss ordered the equipment without asking me first and would not interconnect because of conflicting hardware so I had to fix the issues for a limited amount of money so for under 2 grand ... I had a contractor terminate 20 more connections in our IDF's and bought 7 more GBIC modules so that i could create a ring out the floors in the building as a whole starting from the buildings 3560 going to the 6th floor and back down to the 3560. This is a same 3560 within the ring going around campus which is the feed for this whole buildings network access. I agree with the first poster that if i make the GIG port into a switchport mode trunk vs switchport mode access that posibly it will transfer the other vlan up but we will just have to see won't we. moreResolved Question: pls answer the ccna exploration questions?
1 Refer to the exhibit. The exhibited configurations do not allow the switches to form a trunk. What is the most likely cause of this problem? Cisco switches only support the ISL trunking protocol. The trunk cannot be negotiated with both ends set to auto. By default, Switch1 will only allow VLAN 5 across the link. A common native VLAN should have been configured on the switches. 2 Refer to the exhibit. Company HR is adding PC4, a specialized application workstation, to a new company office. The company will add a switch, S3, connected via a trunk link to S2, another switch. For security reasons the new PC will reside in the HR VLAN, VLAN 10. The new office will use the 172.17.11.0/24 subnet. After installation, the existing PCs are unable to access shares on PC4. What is the likely cause? The switch to switch connection must be configured as an access port to permit access to VLAN 10 on S3. The new PC is on a different subnet so Fa0/2 on S3 must be configured as a trunk port. PC4 must use the same subnet as the other HR VLAN PCs. A single VLAN cannot span multiple switches. 3 Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2 and assigned hosts on the IP addresses of the VLAN in the 10.1.50.0/24 subnet range. Computer A can communicate with computer B, but not with computer C or computer D. What is the most likely cause of this problem? There is a native VLAN mismatch. The link between Switch1 and Switch2 is up but not trunked. The router is not properly configured for inter-VLAN routing. VLAN 50 is not allowed to entering the trunk between Switch1 and Switch2. 4 Refer to the exhibit. How far is a broadcast frame that is sent by computer A propagated in the LAN domain? none of the computers will receive the broadcast frame computer A, computer B, computer C computer A, computer D, computer G computer B, computer C computer D, computer G computer A, computer B, computer C, computer D, computer E, computer F, computer G, computer H, computer I 5 The network administrator wants to separate hosts in Building A into two VLANs numbered 20 and 30. Which two statements are true concerning VLAN configuration? (Choose two.) The VLANs may be named. VLAN information is saved in the startup configuration. Non-default VLANs created manually must use the extended range VLAN numbers. The network administrator may create the VLANs in either global configuration mode or VLAN database mode. Both VLANs may be named BUILDING_A to distinguish them from other VLANs in different geographical locations. 6 Refer to the exhibit. Which two conclusions can be drawn regarding the switch that produced the output shown? (Choose two.) The network administrator configured VLANs 1002-1005. The VLANs are in the active state and are in the process of negotiating configuration parameters. A FDDI trunk has been configured on this switch. The command switchport access vlan 20 was entered in interface configuration mode for Fast Ethernet interface 0/1. Devices attached to ports fa0/5 through fa0/8 cannot communicate with devices attached to ports fa0/9 through fa0/12 without the use of a Layer 3 device. 7 What happens to the member ports of a VLAN when the VLAN is deleted? The ports cannot communicate with other ports. The ports default back to the management VLAN. The ports automatically become a part of VLAN1. The ports remain a part of that VLAN until the switch is rebooted. They then become members of the management VLAN. 8 Switch port fa0/1 was manually configured as a trunk, but now it will be used to connect a host to the network. How should the network administrator reconfigure switch port Fa0/1? Disable DTP. Delete any VLANs currently being trunked through port Fa0/1. Administratively shut down and re-enable the interface to return it to default. Enter the switchport mode access command in interface configuration mode. 9 What must the network administrator do to remove Fast Ethernet port fa0/1 from VLAN 2 and assign it to VLAN 3? Enter the no vlan 2 and the vlan 3 commands in global configuration mode. Enter the switchport access vlan 3 command in interface configuration mode. Enter the switchport trunk native vlan 3 command in interface configuration mode. Enter the no shutdown in interface configuration mode to return it to the default configuration and then configure the port for VLAN 3. 10 Refer to the exhibit. SW1 and SW2 are new switches being installed in the topology shown in the exhibit. Interface Fa0/1 on switch SW1 has been configured with trunk mode “on”. Which statement is true about forming a trunk link between the switches SW1 and SW2? Interface Fa0/2 on switch SW2 will negotiate to become a trunk link if it supports DTP. Interface Fa0/2 on switch SW2 can only become a trunk link if statically configured as a trunk. Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link if the neighboring interface is configured in nonegotiate mode. Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link automatically with no consideration of the configuration on the neighboring interface. 11 What statements describe how hosts on VLANs communicate? Hosts on different VLANs use VTP to negotiate a trunk. Hosts on different VLANs communicate through routers. Hosts on different VLANs should be in the same IP network. Hosts on different VLANs examine VLAN ID in the frame tagging to determine if the frame for their network. 12 Refer to the exhibit. Computer B is unable to communicate with computer D. What is the most likely cause of this problem? The link between the switches is up but not trunked. VLAN 3 is not an allowed VLAN to enter the trunk between the switches. The router is not properly configured to route traffic between the VLANs. Computer D does not have a proper address for the VLAN 3 address space. 13 What are two characteristics of VLAN1 in a default switch configuration? (Choose two.) VLAN1 should renamed. VLAN 1 is the management VLAN. All switch ports are members of VLAN1. Only switch port 0/1 is assigned to VLAN1. Links between switches must be members of VLAN1. 14 Which two statements describe the benefits of VLANs? (Choose two.) VLANs improve network performance by regulating flow control and window size. VLANs enable switches to route packets to remote networks via VLAN ID filtering. VLANs reduce network cost by reducing the number of physical ports required on switches. VLANs improve network security by isolating users that have access to sensitive data and applications. VLANs divide a network into smaller logical networks, resulting in lower susceptibility to broadcast storms. 15 A network administrator is removing several VLANs from a switch. When the administrator enters the no vlan 1 command, an error is received. Why did this command generate an error? VLAN 1 can never be deleted. VLAN 1 can only be deleted by deleting the vlan.dat file. VLAN 1 can not be deleted until all ports have been removed from it. VLAN 1 can not be deleted until another VLAN has been assigned its responsibilities. 16 What is the effect of the switchport mode dynamic desirable command? DTP cannot negotiate the trunk since the native VLAN is not the default VLAN. The remote connected interface cannot negotiate a trunk unless it is also configured as dynamic desirable. The connected devices dynamically determine when data for multiple VLANs must be transmitted across the link and bring the trunk up as needed. A trunk link is formed if the remote connected device is configured with the switchport mode dynamic auto or switchport mode trunk commands. 17 Which two statements about the 802.1q trunking protocol are true? (Choose two.) 802.1q is Cisco proprietary. 802.1q frames are mapped to VLANs by MAC address. If 802.1q is used on a frame, the FCS must be recalculated. 802.1q will not perform operations on frames that are forwarded out access ports. 802.1q allows the encapsulation of the original frame to identify the VLAN from which a frame originated. 18 What switch port modes will allow a switch to successfully form a trunking link if the neighboring switch port is in "dynamic desirable" mode? dynamic desirable mode on or dynamic desirable mode on, auto, or dynamic desirable mode on, auto, dynamic desirable, or nonegotiate mode 19 What is a valid consideration for planning VLAN traffic across multiple switches? Configuring interswitch connections as trunks will cause all hosts on any VLAN to receive broadcasts from the other VLANs. A trunk connection is affected by broadcast storms on any particular VLAN that is carried by that trunk. Restricting trunk connections between switches to a single VLAN will improve efficiency of port usage. Carrying all required VLANs on a single access port will ensure proper traffic separation. 20 Refer to the exhibit. Computer 1 sends a frame to computer 4. On which links along the path between computer 1 and computer 4 will a VLAN ID tag be included with the frame? A A, B A, B, D, G A, D, F C, E C, E, F 21 Refer to the exhibit. Which statement is true concerning interface Fa0/5? The default native VLAN is being used. The trunking mode is set to auto. Trunking can occur with non-Cisco switches. VLAN information about the interface encapsulates the Ethernet frames. moreResolved Question: pls answer the ccna questions?
1 Which statement is true when VTP is configured on a switched network that incorporates VLANs? VTP is only compatible with the 802.1Q standard. VTP adds to the complexity of managing a switched network. VTP allows a switch to be configured to belong to more than one VTP domain. VTP dynamically communicates VLAN changes to all switches in the same VTP domain. 2 Refer to the exhibit. Switches SW1 and SW2 are interconnected via a trunk link but failed to exchange VLAN information. The network administrator issued the show vtp status command to troubleshoot the problem. On the basis of the provided command output, what could be done to correct the problem? Switch SW2 must be configured as a VTP client. The switches must be interconnected via an access link. The switches must be configured with the same VTP domain name. Both switches must be configured with the same VTP revision number. 3 Refer to the exhibit. Switch S1 is in VTP server mode. Switches S2 and S3 are in client mode. An administrator accidentally disconnects the cable from F0/1 on S2. What will the effect be on S2? S2 will automatically transition to VTP transparent mode. S2 will remove all VLANs from the VLAN database until the cable is reconnected. S2 will retain the VLANs as of the latest known revision, but will lose the VLANs if it is reloaded. S2 will automatically send a VTP request advertisement to 172.17.99.11 when the cable is reconnected. 4 Refer to the exhibit. All switches in the VTP domain are new. Switch SW1 is configured as a VTP server, switches SW2 and SW4 are configured as VTP clients, and switch SW3 is configured in VTP transparent mode. Which switch or switches receive VTP updates and synchronize their VLAN configuration based on those updates? All switches receive updates and synchronize VLAN information. Only switch SW2 receives updates and synchronizes VLAN information. Only switches SW3 and SW4 receive updates and synchronize VLAN information. SW3 and SW4 receive updates, but only switch SW4 synchronizes VLAN information. 5 Refer to the exhibit. The switches in the exhibit are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this? VLANs cannot be created on transparent mode switches. Transparent mode switches do not forward VTP advertisements. VLANs created on transparent mode switches are not included in VTP advertisements. Server mode switches neither listen to nor forward VTP messages from transparent mode switches. 6 Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches that are shown in the exhibit. What are two possible explanations for this? (Choose two.) Switch1 is in client mode. Switch2 is in server mode. Switch2 is in transparent mode. Switch1 is in a different management domain. Switch1 has end devices that are connected to the ports. Switch1 is using VTP version 1, and Switch2 is using VTP version 2. 7 What does a client mode switch in a VTP management domain do when it receives a summary advertisement with a revision number higher than its current revision number? It suspends forwarding until a subset advertisement update arrives. It issues an advertisement request for new VLAN information. It increments the revision number and forwards it to other switches. It deletes the VLANs not included in the summary advertisement. It issues summary advertisements to advise other switches of status changes. 8 What are two features of VTP client mode operation? (Choose two.) unable to add VLANs can add VLANs of local significance forward broadcasts out all ports with no respect to VLAN information can only pass VLAN management information without adopting changes can forward VLAN information to other switches in the same VTP domain 9 Refer to the exhibit. S2 was previously used in a lab environment and has been added to the production network in server mode. The lab and production networks use the same VTP domain name, so the network administrator made no configuration changes to S2 before adding it to the production network. The lab domain has a higher revision number. After S2 was added to the production network, many computers lost network connectivity. What will solve the problem? Reset the revision number on S2 with either the delete VTP command or by changing the domain name and then changing it back. Re-enter all appropriate VLANs, except VLAN 1, manually on Switch1 so that they propagate throughout the network. Change S1 to transparent VTP mode to reclaim all VLANs in vlan.dat and change back to server mode. Change S2 to client mode so the VLANs will automatically propagate. 10 Which three VTP parameters must be identical on all switches to participate in the same VTP domain? (Choose three.) revision number domain name pruning mode domain password version number 11 Refer to the exhibit. All switches in the network participate in the same VTP domain. What happens when the new switch SW2 with a default configuration and revision number of 0 is inserted in the existing VTP domain Lab_Network? The switch operates as a VTP client. The switch operates in VTP transparent mode. The switch operates as a VTP server and deletes the existing VLAN configuration in the domain. The switch operates as a VTP server, but does not impact the existing VLAN configuration in the domain. The switch operates as a VTP server in the default VTP domain and does not effect the configuration in the existing VTP domain. 12 What statement describes the default propagation of VLANs on a trunked link? only VLAN 1 all VLANs no VLANs the native VLAN 13 What causes a VTP configured switch to issue a summary advertisement? A five-minute update timer has elapsed. A port on the switch has been shutdown. The switch is changed to the transparent mode. A new host has been attached to a switch in the management domain. 14 Refer to the exhibit. What information can be learned from the output provided? It verifies the configured VTP password. It verifies the VTP domain is configured to use VTP version 2. It verifies VTP advertisements are being exchanged. It verifies the VTP domain name is V1. 15 Which two statements are true about the implementation of VTP? (Choose two.) Switches must be connected via trunks. The VTP domain name is case sensitive. Transparent mode switches cannot be configured with new VLANs. The VTP password is mandatory and case sensitive. Switches that use VTP must have the same switch name. Showing 1 of 2 <Prev Page: Next> Close Window All content copyright 1992-2008 Cisco Systems, Inc. Privacy Statement and Trademarks. 16 Which two statements describe VTP transparent mode operation? (Choose two.) Transparent mode switches can create VLAN management information. Transparent mode switches can add VLANs of local significance only. Transparent mode switches pass any VLAN management information that they receive to other switches. Transparent mode switches can adopt VLAN management changes that are received from other switches. Transparent mode switches originate updates about the status of their VLANS and inform other switches about that status. 17 Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two.) If this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own VLAN information to be more recent than the VLAN information advertised by this switch. This switch shows no configuration revision errors. This switch has established two-way communication with the neighboring devices. This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain. This switch is configured to allows the network manager to maximize bandwidth by restricting traffic to specific network devices. 18 A network administrator is replacing a failed switch with a switch that was previously on the network. What precautionary step should the administrator take on the replacement switch to avoid incorrect VLAN information from propagating through the network? Enable VTP pruning. Change the VTP domain name. Change the VTP mode to client. Change all the interfaces on the switch to access ports. 19 Which two statements are true about VTP pruning? (Choose two.) Pruning is enabled by default. Pruning can only be configured on VTP servers. Pruning must be configured on all VTP servers in the domain. VLANs on VTP client-mode switches will not be pruned. Pruning will prevent unnecessary flooding of broadcasts across trunks. 20 How are VTP messages sent between switches in a domain? Layer 2 broadcast Layer 2 multicast Layer 2 unicast Layer 3 broadcast Layer 3 multicast Layer 3 unicast moreResolved Question: which 1 is good ? cisco 3650 router and vlan for entire building or procurver layer-2 switch ?
i have two option n m confused as havent much experience with networking field ? I have 150 users so i m planing to connect all of them through procurver layer2 managed switch and then all switch with 1 router ..... or I can use 3600 series cisco router and by using VLAN concept? which is good and faster in terms of speed...budget is not a concern... it will be gr8 if some1 can advice me somethin,.,, Many thnx moreResolved Question: which is the best low cost layer-2 switch to connect with cisco 1800 series router?
I am interconnecting 3 building using WAN and each having 1 cisco 1800 router with 1 central 1800 series router. Each building having 150-200pcs so I want to put 3-4 layer 2 switch at each floor for ease of expansion. many thnx moreResolved Question: Cisco Web interface TACACS Authentication?
I currently am working with Cisco Catalyst 2940-8TF Layer 2 switches with IOS 12.1(22)EA10a . They are configured for TACACS authentication when connecting to the switch via telnet. I am trying to set them up so that when the web interface is accessed that it also uses TACACS authentication. It is using the enable password. I have configured the following 2 commands which I expect should work, but instead, when I enter these commands, username/password do not work, nor does the enable password. ip http server ip http authentication tacacs Am I missing something? **Thanks, I'm out of work for the next 2 days, so I'll post results then moreResolved Question: Where can I find a cheap layer 3 switch?
Something under 300 bucks preferable a name brand. Cisco, HP,... moreResolved Question: What is a carrer oriented course for a person withe following back ground?
6yrs of exprience in the technical industry touching network development with network designing and network implementation & systems management skills,Installing & Configuring Cisco Routers, Cisco Catalyst Switches & Linksys Switches.Routing protocols, Layer 2 switching, WAN technologies & WAN protocols.Experience in TCP/IP Network design & Implementation, Troubleshooting in routing & switching related issues.Development with network designing and network implementation skills.•Experience in routing protocols such as RIP, EIGRP & BGP.Good experience in Network Design, Implementation and maintenance of systems in LAN & WAN.Good experience in LAN hardware/software administration, design, installation ndconfiguration.exprnc in Designing and configuring of workstations for TCP/IP on FDDI & Ethernet network.Organized &structured approach to work in general and System Administrator, keeping the overview & documenting knowledge in Operating Systems MS Windows 2003/XP/2000/NT/9X,redhatlinux moreResolved Question: I I need to control who can plug in to my ports on my 2950s. I dont want to use Stickyports. Any suggestions
I am using Cisco 2950's as a distribution layer for my switches. I aleady know about know about switchport port-security stickyport and 802.1x.... does any one out there have any suggestion as far as controlling access to my network by other means? I currently have about 35 Vlans spanning across a network of 300 or so machines. I have been asked to require some sort of port based access control in several rooms. Help me out here. I have an Idea about what I want to do, but I want some outside suggestions. Is NAC in end of sale? No other suggestions? moreResolved Question: I have 04 vlans on a cisco 3560 switch and I want to route them. How can i do this?
I have 04 networks 192.168.1.0,2.0,3.0,4.0 and I want to enable routing on these 4 networks. If I use a layer 2 switch then I need a router for the vlan packets to exit out.However I am using a Layer 3 cisco 3560 switch and I have configured 4 vlans on them. How do I route them now? moreResolved Question: Using a Layer 3 Switch with a firewall?
I have a layer 3 Cisco switch. I've made 10 VLANs with different IP address range and I want each VLAN users to be controlled by a firewall when they want to communicate with users in other VLANs. But my Cisco switch layer 3 module simply routes all packets to their destinations because it recognizes them all as connected subnets. How can I prevent this? I want all packets have to go to firewall and then firewall decides if packet is permitted or denied accessing other VLAN. moreResolved Question: How to use a layer 3 switch and a firewall?
I have a layer 3 Cisco switch. I've made 10 VLANs with different IP address range and I want each VLAN users to be controlled by a firewall when they want to communicate with users in other VLANs. But my Cisco switch layer 3 module simply routes all packets to their destinations because it recognizes them all as connected subnets. How can I prevent this? I want all packets have to go to firewall and then firewall decides if packet is permitted or denied accessing other VLAN. moreResolved Question: In a layer 3 switch is there a way to give access to specific person to access to all the vlans ?
switch :cisco 4500 moreResolved Question: Cisco 2948g Switch?
I have a Cisco 2948g switch. What is this switch capable of doing in my network. Is not a Layer 3 switch. What are the kinds of configs I can do to have a good network. Thanks moreMore Cisco Switch Layer Results
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xml_get_current_column_number() = 2
xml_get_current_byte_index() = 780
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