Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
I'm in need of writing an ACE that willblock IPv6 router advertisements forimproperly configure hosts.Seen quite a few advertisements for6to4 gateways that have no businesshere. Any thoughts folks?This is for 3750 stacks that are runningIP Base.Thank...
After running for several weeks without incident, our 3750 stack that has around 20 routed vlan interfaces has developed significant pasket loss (>10%) during portions of the day.How can I check to see if this is from resource exhaustion? Then I co...
The stack consists of a 24TS and a 12S. It has about 40 vlans on it and 25 SVI's. Except for minor changes to access-lists, its config has stayed relatively the same for several years.I added a 3750E to the stack over the summer and upgraded the fi...
Newly upgraded firmware on a G2:12.4(15)T1Aug 26 12:50:53.611: %SYS-4-CHUNKMALLOCFAIL: Could not allocate chunks for CEF:arp throtTotal free: 0, Total inuse: 500, Cause : Not a dynamic chunkFollowed by a traceback.The router does not crash, so seems ...
Our gateway router is running an HSRP instance, and also OSPF. Main IP is, say, x.x.x.2 and virtual interface is x.x.x.1 with plans to add another router at x.3.The router ospf ID is a loopback address in another range altogether.Neighboring routers...
Switches _must_ be running the same feature setfor them even to co-exist in a stack.SW version must be close. Some minor revs canstack together, but if the stack-ring protocolhas changed between versions, that won't workeither.Always best to match t...
I'm still puzzled by the fact that a 'clear arp' will provide temporary relief. How long it lasts seems to be directly related to the overall activity on the particular vlan.Doing away with the acls could not be done for very long, since this is our...
