HP 200 Series Services And Applications page 99
Hide thumbs
Also See for 200 Series:
- Installation manual (144 pages) ,
- Hardware support document (95 pages) ,
- Instructions manual (7 pages)
Table of Contents
Advertisement
Bridging Service
Source-Routing Bridging
If two or more HP routers operate as bridges in parallel, then, to avoid loop-
ing traffic, you must assign them different, unique bridge IDs. In this case,
you must use the "Source Route Bridge ID" parameter to inform this bridg-
ing router of each other HP bridging routers (that is, of the other bridge IDs)
that exist on the network.
Router C
Bridge ID = 2
SRB ID = 1
Router AIf
Router D
Router B
Bridge ID = 1
Bridge ID = 1
Bridge ID = 1
SRB ID = 2
SRB ID = 2
SRB ID = 2
Figure 32. Source-Routing Bridges Operating in Parallel
Figure 32 illustrates an example of parallel (redundant) bridging. Because B
and C operate in parallel, the bridge ID for C is changed from 1 to 2, so that
it is unique. Because all HP routers have to know about all other HP routers,
each bridging service is configured with a "Source Route Bridge ID" (SRB
ID) for each other bridge ID on the network. That is, the SRB ID for A, B,
and D is set to 2, which specifies that an additional path exists through
router C. The SRB ID for C is set to 1, which specifies that an additional path
exists through router B.
Hop Count Reduction
Configure it to be No unless you want infinite
hop capability. No specifies a maximum of seven hops between the
source-routing source and destination.
Group LAN ID
This is used by the bridging router when transmitting
specifically routed frames (SRFs) between HP (or Wellfleet) bridging
routers. Together with the other routing designators, the group LAN ID
helps intermediate bridges identify the destination end node. The group
LAN ID you configure must match the group LAN ID assigned to all HP
or Wellfleet bridges and routers, and must differ from all internal LAN ID
values and external LAN ID values assigned to any bridges or routers on
the network.
Source Route
A configuration parameter named "Src Rte" is used to
enable source-routing bridging on a circuit group.
2-47
Advertisement
Table of Contents
