I have an issue with stale route which can only be resolved by using the command 'clear route ipv4 unicast <prefix>' We have been running this IOS verision for a while and this is the first time that we have seen this. Anyone seen this issue before? ... View more

When I display info to a specific route using the 'show ip bgp 10.10.10.6' command i see two metrics, one from IGP and the other from BGP. I see that they do not match each other and are always either +/- 1 or 2. Can any one help define what influences the differences ... View more

Hello, I have several Catalyst 6500 (Supervisor 32) aggregation switches with WS-X6148A-GE-TX and WS-X6148-GE-TX line cards. These line cards do not support storm-control/broadcast suppression. This impacted us badly during a recent spanning tree event. As it stands, we are at risk of overwhelming control planes with excess broadcast or multicast traffic, and I need to find alternative ways to protect these switches. I have been researching STP enhancements, and control-plane policing in the folowing documents, and would appreciate advice from engineers who may have had to implement similar workarounds for storm-control in a service provider setting. * Configuring Denial of Service Protection http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/dos.pdf * Configuring Control Plane Policing http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/31sga/configuration/guide/cntl_pln.pdf * Configuring Optional STP Features http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/31sga/configuration/guide/stp_enha.pdf So, if we can't mitigate agaisnt STP events using storm-control or broadcast suppression, what might be the best combination of STP enhancements and control plane policing? For example, it it possible to rate-limit broadcast/mult=icast, STP and ARP on a per VLAN basis? If so, how? Many thanks, P -- Peter George Lumison ... View more