[j-nsp] MX960 JunOS recommendations

Pekka Savola pekkas at netcore.fi
Thu Nov 12 02:39:07 EST 2009


On Wed, 11 Nov 2009, sthaug at nethelp.no wrote:
> We have standardized on 4470 byte MTU. This means mtu 4470 on Cisco
> IOS physical Ethernet interfaces, and MTU 4484 on Juniper JunOS
> physical Ethernet interfaces. No need to explicitly set IP or CLNS
> MTU.

Except when you enable VLANs on Ethernet, you need to crank it up to 
4488.. A thing to keep in mind and/or to monitor using scripts.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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