[c-nsp] MTU Issue on QinQ Eth link with MPLS

[mb2 at os.datafx.com.au]

Hi,

We have recently had a QinQ link provisioned, but have noticed mtu 
issues when testing.

The link is terminated on 2950's(Trunk Ports) at each end, with the 
2950's then connected(Also trunk ports) to 7204VXRs, and the various 
vlans broken out into dot1q Ints.

Without MPLS(Including MPLS L3 VPNs) running on the link, we can access 
all WebSites without issue - As soon as MPLS is enabled, some sites are 
not accessible(https sites, www.smh.com.au...)

If we switch back to our primary link(ATM), we also do not experience 
any mtu issues.

Should we be decreasing the size of mpls mtu on the 7200's?

Thanks in advance for all suggestions.

-------------------------------------------------------------------------
This e-mail was sent via Data FX Online WebMail http://www.datafx.com.au/