[c-nsp] 12.2(18)SXD to 12.2(33)SRB|C|D

[Jason Lixfeld]

As I look through the release notes, I thought I'd also ask here to  
see if anyone here has experience upgrading between these two versions  
on a 7600.  Any major gotchas?  Our box is pretty vanilla:  HA/SSO,  
VLANs, BGP4, per-port MTU, trust DSCP, LACP, OSPF, EIGRP, IPv4 only.

We're upgrading because we need hardware support for an ES20-GE3CXL  
for future use as an EVC termination point and RSVP based [M|V]PLS.   
Minimum requirements for the hardware is SRB, but seeing as how we are  
now at SRD do folks have some advice about the usability of some of  
the newer SR trains in conjunction with some of the aforementioned  
features?

Thanks in advance.