
BayRS Version 15.5.0.0 Document Change Notice
18-2 314470-15.5 Rev 00
The implementation of this feature supports six service classes using round robin
weighted queues with integrated queuing and scheduling. Only long sequence
number format is supported. If compression is enabled on the link, fragmentation
and interleaving happens after compression is complete.
For multiclass circuits, this feature can be configured to operate over a single line.
However, if multiple lines are configured in the bundle, they all must have the
same line speed.
This feature can fully interoperate with the DiffServ marking of internally
generated router packets feature discussed earlier in Chapter 5.
Although RFC 2686 provides the option of prefix elision, Nortel Network’s
implementation on BayRS Routers does not support it. This implementation also
does not support DSQMS (Differentiated Services Queue Management System)
on any interface on which this feature is enabled.
When utilizing this feature, it is recommended that you make sure that VoIP
packets are marked with the EF DiffServ code point (for Premium service class).
Voice packets that are marked with the EF DiffServ code point will never be
fragmented.
Table 18-1. Mapping of PPP Classes to DiffServ Code Points (DSCP)
PPP Class Number Nortel Networks Service Class DiffServ Code Point
5Premium EF, CS5
4 Critical, Network CS7, CS6
3Platinum AF4x, CS4
2Gold AF3x, CS3
1 Silver, Bronze AF2x, CS2, AF1x, CS1
0 Standard DF, CS0
Note: You must use Site Manager to configure the multilink multiclass PPP
feature. There is no BCC support for this feature.
Komentáře k této Příručce