Information Technology Reference
In-Depth Information
Local SRB: Routing Does Not Function
Symptom:
Routed protocols are not forwarded properly by routers in a local SRB environment. SRBs
bridge traffic normally.
Table 10-2 outlines the problems that might cause this symptom and describes solutions to those
problems.
Table10-2
Local SRB: Routing Does Not Function
Possible Problem
Solution
Routing problem
For detailed information on troubleshooting routing problems,
refer to the chapters in this topic that cover the routing protocols
in question. For example, if you are running Novell IPX, see
Chapter 8, “Troubleshooting Novell IPX.”
Missing
multiring
command
1.
Use the
show running-config
privileged exec command on
the router. Look for a
multiring
interface configuration
command entry. This command enables the collection and
use of RIF information on router interfaces.
2.
If the
multiring
command is not present, add the command
to the configuration using the following command:
C4000(config-if)#
multiring all
Incomplete ARP
1
table
Determine whether you can
ping
hosts.
1.
If the host does not respond, use the
show arp
exec
command to determine whether an entry for the host exists
in the ARP table.
2.
If an entry exists, there is probably a routing problem.
Determine whether you have a source-route path to the
destination hardware (MAC) address. Use the
show rif
exec
command to match the RIF with the hardware address of
the host.
3.
If no entry exists, use a network analyzer to see whether
ARP requests are getting through to the remote ring and to
see whether replies come back.
4.
1.
ARP=Address Resolution Protocol
RSRB: Host Cannot Connect to Server (Peers Not Open)
Symptom:
Hosts cannot make connections to servers across a router configured as a remote
source-routing bridge (RSRB). The output of the
show source-bridge
privileged exec command shows
that SRB peers are not open.
If you succeed in getting peers to open, but hosts are still incapable of communicating with
servers, refer to the section “RSRB: Host Cannot Connect to Server (Peers Open),” later in
this chapter.
Note
