Switching

I have a 4451(int gi0/0/0) that is directly connected to a 6509(int gi2/36) and I'm receiving unknown protocol drops on the 4451 interface. All that i've read says that it could be CPD not being enabled on one side, however i have CDP enabled on both...

Hello All, We recently moved a network from Alcatel 6850/6450 to Cisco 3650/2960X. On this network we use alcatel ip phone connecting the PC on dot1x authenticated port. On the Alcatel switches we used the "port mobile" feature which moved the ip p...

I have created a new L2-vlan in switch but when i am trying below command getting the below message Switch# sh vlan id 218VLAN Name                             Status    Ports---- -------------------------------- --------- --------------------------...

Hello,  I'm a bit confused about which ports to enable STP Root Guard. I have a Distribution Switch, which has been configured as the Root Bridge. This Dist sw has 7 downstream access-layer switches that are directly uplinked to it via 10Gb Trunk Por...

Hi, What would be the best way to go about upgrading the IOS software between (2) 4500 switches in a VSS quad SUP 8E setup?  Can ISSU be done (or another way if better) and how would I go about upgrading the 2 SUPs that are in the ROMMON mode state? ...

Hi all Currently i am looking to purchase a Cisco Catalyst layer 3 SW for some LAN testing between servers. And i was at some point told that many Catalyst switches (layer 2 / layer 3) comes with images that contain the same features. Question one Ho...

As we know Nexus supports multiple vrf under same ospf process , but there is also a way where we can create multiple ospf process per vrf. which should be preferred and why ? Also if anyone can highlight the role of ROUTER-ID with regards to this t...

hello all, I have a question, I have 2 controller primary and backup I create users in controller primary how can I synchronous users with backup controlle. what i want to do is when i create user in primary controller automatically created in contro...

Hi there I have a switch with strange behavior. One of its ports stays shutdown, even after I used "no shutdown". There is no device connected to the port. Reload did not solve the problem. Someone any ideas? performing a no shut: User Access Verific...

Good afternoon !Tell me , what may be related to the permanent load of the processor ( sometimes all 4 cores to 70 % ) and great pings to the neighboring switches located at a distance of 2 meter patch cord . They may be from 10 ms to 40 at random in...

Hi Team, We are seeing high CPU utilization on one of our Core Switch (WS-C6509-E with SUP 720 running IOS s72033_rp-IPSERVICESK9_WAN-M). See the output captured for CPU utilization and see ~50% of CPU is used for ARP Input. Request experts to help ...

Dear Support, I have 6506-E  chassis and card type CEF 720 16 10GE  with model WS-6716-GE  and distributed forwarding card  WS-F6700-DFC3C and IOS Version 12.2(33)SXI4a.Can I know  this module and IOS version will support VSS implementation. I have s...