Information Technology Reference
In-Depth Information
Table10-1
Local SRB: Host Cannot Connect to Server
Possible Problem
Solution
Ring number
mismatch
A router interface configured for bridging fails to insert into a
ring when it detects a ring number mismatch, and it posts an error
message to the console.
1.
Get the ring number (specified in hexadecimal) from IBM
SRBs (either by examining the configuration of other SRBs
or from the system administrator).
2.
Use the
show running-config
(or simply
show run
)
privileged exec command to view the configuration of
routers configured as SRBs. Look for
source-bridge
interface configuration command entries that assign ring
numbers (displayed in decimal) to the rings that are
connected to the router's interfaces.
1
For example, the following configuration entry shows the entry
for local ring 10, bridge number 500, and remote ring 20:
source-bridge 10 500 20
Note:
Parallel bridges situated between the same two rings must
have different bridge numbers.
3.
Convert IBM SRB ring numbers to decimal, and verify that
the ring numbers configured on all internetworking nodes
agree.
4.
If the ring numbers do not agree, reconfigure the router
interface or IBM SRBs so that the ring numbers match. Use
the
source-bridge
command to make configuration changes;
the syntax is as follows:
source-bridge
source-ring-number bridge-number
target-ring-number [conserve-ring]
Syntax description:
source-ring-number
—Ring number for the interface's Token
Ring or FDDI
2
ring. It must be a decimal number in the range
1 to 4095 that uniquely identifies a network segment or ring
within the bridged Token Ring or FDDI network.
•
bridge-number
—Number that uniquely identifies the bridge
connecting the source and target rings. It must be a decimal
number in the range 1 to 15.
•
target-ring-number
—Ring number of the destination ring on
this router. It must be unique within the bridged Token Ring
or FDDI network. The target ring can also be a ring group.
This must be a decimal number.
•
continues
