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I have a stackwise pair of  C9500-48Y4C switches. They are correctly registered to CSSM.The sofware is 16.12.4, network-advantage license appear to by active, but for unknown reason I cannot configure MKA policy in global config mode. SWITCH(config)#...

Hello Senior's, I am using using 2 nexus devices as a core which are configured in VPC and further connect downward with 2960 switches and almost 100 Vlan are configured, I am facing frequently TCN for all the Vlans, What might be the possible reason...

I have a pair of old 3560's with 1gb copper SFP's, running a dot1q trunk.  I can go from a 1gb SFP on one switch to a FE port on the other switch no problem, but if I try and go from 1Gb to 1Gb, the link won't come up unless I insert a crossover cabl...

FYI - Do NOT purchase any Cisco 3850x switch if you intend to use a 10g SFP+ in the network module slot. It will not work and TAC currently has no workaround or idea when the code will be fixed. This problem is intermittent. I have a 1/4 million doll...

MARC HEARD by Beginner
  • 9 replies
  • 5 Helpful votes

I have a small lab as following PE1 ---- P-RR ----PE2 BGP on PE2 PE2#show run | s bgprouter bgp 65001 bgp log-neighbor-changes neighbor remote-as 65001 neighbor update-source Loopback0 neighbor next-hop-self ! address-family v...

gongya001 by Beginner
  • 3 replies
  • 0 Helpful votes

I have a Cisco Catalyst 3850 running Everest 16.6.6. I have created one primary private-vlan and 2 secondary private-vlans. I have my section of quarantined machines on the secondary private-vlan that is set to isolated. I have the rest of the workst...

LazerEyez by Beginner
  • 1 replies
  • 0 Helpful votes

I try this lab https://packetlife.net/blog/2008/aug/06/simple-wired-8021x-lab on WS-C2960L-48PS-LL but it has noradius-server hostcommand, how should I do?Cisco IOS Software, C2960L Software (C2960L-UNIVERSALK9-M), Version 15.2(5c)E, RELEASE SOFTWARE...

Hello all, I have several pair of 6513E with dual SUP2T modules and a handful of WS-X6908-10G.The 6908-10G are full of X2-10GB-SR modules connected to various 10G Nics by Intel & Chelsio.All of these ports appear to be stuck operating at 1G instead o...

yaplej by Beginner
  • 2 replies
  • 0 Helpful votes