[Contents] [Prev] [Next] [Index] [Report an Error]

TTL Processing in the Platform Label Space

JUNOSe MPLS TTL processing is compliant with RFC 3443. The details of TTL processing vary with the tunnel model that is configured for TTL processing, pipe or uniform.

To keep backward compatibility with earlier JUNOSe releases, you do not use the mpls tunnel-model command to configure the tunnel model for TTL processing, That command is used instead to configure the tunnel model for EXP bits processing. The default tunnel model varies between TTL and EXP processing; for EXP processing, the default tunnel model is pipe, while for TTL processing the default tunnel model is uniform.

You can issue the no mpls ip propagate-ttl command to change the TTL processing tunnel model from the default uniform model to the pipe model. Issue the no mpls ip propagate-ttl local command to set the tunnel model to pipe for locally originated packets. Issue the no mpls ip propagate-ttl forwarded command to set the tunnel model to pipe for forwarded packets.

[Contents] [Prev] [Next] [Index] [Report an Error]