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fragment table has reached its maximum threshold

Bernard Magny
Level 1
Level 1

I get this msg on my router all the time. It's related to the Tunnel, but I don't know how to fix it.

Dialer0: the fragment table has reached its maximum threshold 16

The memory usage of the router is always at 80% also.

It's a 837 router.

Can anyone guide me in what to do?

Thanks

Bernard

3 Replies 3

b.speltz
Level 4
Level 4

I think you're hitting a bug. You should change your version of IOS. That will probably fix it.

It could be a DOS attack against your network. See the Cisco article below:

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t8/feature/guide/gt_vfrag.html

j.hoyt
Level 1
Level 1

I know you can increase the table size with the

ip virtusl-reassembly command but I don't have the recommended specs handy.