About adavenport

adavenport · 03-14-2008

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...

adavenport · 10-22-2007

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...

adavenport · 09-23-2007

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...

adavenport · 08-27-2007

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 ...

adavenport · 05-24-2007

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...

adavenport · 03-14-2008

Humm, lets see. So about $180K to upgrade all my edge switches to do this.No thanks. Need a different solution.Roger

adavenport · 03-14-2008

Did you disable the RPS first? (which wouldhave shut down switch 3).Maybe glitch out of the RPS caused the other 2to reboot.Roger

adavenport · 03-14-2008

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...

adavenport · 09-24-2007

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...

adavenport · 09-23-2007

You didn't say how old your 7200 was, but consider upgrading it to a 7204/6 vxr with an NPE-G2. That might help a bunch.Roger

Member Since	‎01-19-2005 08:52 PM
Date Last Visited	‎08-18-2017 03:53 AM
Posts	36
Total Helpful Votes Received	10

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IPv6 ACEs on 3750 possible?

c3750 layer 3 packet loss

3750 stack dropping routed packets

CHUNKMALLOCFAIL error on 12.4T on 7206-NPE-G2

OSPF and HSRP on internal lan. Resulting route issue.

Re: IPv6 ACEs on 3750 possible?

Re: 3750 Stack boot issue

Re: 3750 Stack

Re: 3750 stack dropping routed packets

Re: 3550-12G EMI Router.