Switching

We run an all cisco network wth a 6500 core switch and 3500 access layer switches. In one instance a customer had a VOIP gateway device plugged in improperly and as a result all clients on that specific VLAN looses their regularly assigned IP address...

I'm trying to get a Cisco 1751-v router to assign DHCP addresses to 7940 phones. I can't for the life of me get this to work.The phones are plugged into a PoIE 3500 Cisco Switch. The router is plugged into port 24 of the switch.Switch IP: 172.16.3....

I would like to EtherChannel a server running HP ver7 NIC Teaming. The question I have is can I etherchannel two ports on different modules? or do they need to be on the same module?Thanks,Burleyman

I installed a WS-X6748-SFP in my 6509 with two sup 720 base and it changed the switchmode from flow-through to truncated which I believe is due to the fact that i had one non fabrice enabled blade WS-X6348-RJ-45 in it.%SYS-3-FAB_CHNGMODE:System swit...

Hellois there somebody who know the way (and which equipement use) to measure the signal transmitted by a GBIX in order to have it characteristics.Thnks in advance

I am trying to troubleshooting a routing issue and decided to setup an access-list that specifies two host IP addresses to see what is going on. I do something like this:access-list 199 permit ip host 1.1.1.1 host 2.2.2.2access-list 199 deny ip any ...

Can the Same VLAN be defined and functional on 2 different Switch with out causing a ISSUE. ie. I have a vlan 100 up and running I want to create the same vlan on a differnet switch its already in the core and up and running. will doing this cause a...

Hello,I need to turn of L3 routing on my 6509 with SUP32 running native IOS 12.2SX Enterprise Services.I am used to using the command "no ip routing" to accomplish this; however, that command does not appear in global config mode. I checked the Cisc...

Hi all, can anyone tell me why this option is on my pc ? why would i want to bridge network connections on my machine ?thanks

If a switch is configured with the following:SwitchB(config)# spanning-tree extended system-idSwitchB(config)# spanning-tree vlan 5 root primary If SwitchA is the root bridge with a priority of 4200, i suppose SwitchB has no chance of becoming the ne...

Hi guys Is there an equivalent command on an IOS based switch (6500/4500) for the catOS command "show port mac"?I needed to track down a device that was causing a broadcast storm and struggled where this command would have helped.Cheers

What does show vlan internal usage command signify?

please if any one can give me the difference between NM-1CE1T1-PRI and NM-HDV2-1T1/E1