Hi Ranji, Control plane functions refer to processes that are run in software, whereas data plane functions refer to processes that are run in hardware (ASIC). For backplane pl check below documents, in very depth explanation. http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/prod_white_paper0900aecd80673385.html   - HTH ... View more

    Hi Reza,  Found the solution for this issue,it is a bug in ios version , so I downgrade to 3.4, and its working properly,  Release notes details; Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch. Workaround: None. CSCub63571   Regards, ... View more

    Hi,  # Check physical layer using cable-diagnosis tdr command on both.  # Is it poe switch? if yes then check its getting correct power.  # Is there ACL on 6500 or 3560?     ... View more

   Thanks Reza for reply,  Yes this is not common practice, we need to configure MEC, but in our case only one fibre pair is available between core (4500x_VSS) and access. now customer wants to connect half of fibre connectivity on active and half of on secondary.  Threre is another site where 6500(2T) VSS is configured and they are connected in this fashion means only one fiber on redundant chassis, and it is working properly.  It will be very helpful If you share any document on cisco.com, stating that its not possible in 4500X VSS. ... View more

Hi, To communicate between different subnet, need layer 3 device ( 3750 switch can do intervlan routing ) You have to configure new L3 vlan ( int vlan X - 1.1.1.x ), then intervlan routing will work and make sure IP ROUTING enabled. ... View more

Hi, check below configuration sw1(config)#redundancy sw1(config-red)#mode sso sw2(config)#redundancy sw2(config-red)#mode sso sw1(config)#switch virtual domain 100 sw1(config-vs-domain)#switch 1 sw1(config-vs-domain)#exit sw2(config)#switch virtual domain 100 sw2(config-vs-domain)#switch 2 sw2(config-vs-domain)#exit Sw1(config)#interface port-channel 10 Sw1(config-if)#switch virtual link 1 Sw1(config-if)#no shut Sw2(config)#interface port-channel 20 Sw2(config-if)#switch virtual link 2 Sw2(config-if)#no shut sw1(config)#interface range ten 3/1-2 sw1(config-if)#channel-group 10 mode on sw1(config-if)#no shu sw2(config)#interface range ten 3/1-2 sw2(config-if)#channel-group 20 mode on sw2(config-if)#no shu Sw1#switch convert mode virtual Sw2#switch convert mode virtual To verify, show switch virtual show switch virtual link shwo switch virtual role for more information http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/vss.html HTH ... View more

Hi, First, your output shows you are running VTP version 2 (R2), and below statements differ VTP version 1 and 2, VTP v1, a transparent mode switch does not even relay VTP information it receives to other switches unless its VTP domain names and VTP version numbers match those of the other switches. VTP v2, transparent switches do forward recieved VTP advertisements out their trunk ports, acting as VTP relays. This occurs regardless of the VTP domain name setting. May be it is a IOS bug in your switches and check Software Bug Toolkit of Cisco. HTH ... View more