Troubleshooting guide

11-64
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 11 Troubleshooting Layer 3 Network Connections
Troubleshooting SDM Problems
Modify : Success 0 Failure 0
Move : Success 0 Failure 0
Mask RW : Success 0 Failure 0
Name : MAC Addr
Size : 2048
MinSize : 128
MaxSize : 16384
FreeKey : 0x0
Start : 0x4700
End : 0x56FE
Entry : 64-bit
Lookup : Reserved
Name : Access List
Size : 0
MinSize : 512
MaxSize : 16384
Entry : 128-bit
Switch#
Step 4 Confirm that the value entered in Step 1 does not exceed the total existing TCAM size, and try again.
Switch(config)# sdm size l2-switching 16000
Switch(config)# ^Z
Switch#
Troubleshooting the “%LSS-1-SDM: Region reached limit. Cannot accept more entries” Syslog Message
The switch router generates the “%LSS-1-SDM: Region reached limit. Cannot accept more entries”
syslog message at startup, or during normal system operation.
The following example shows that the system was unable to install one or more entries in the TCAM for
the ip-adjacency and ip-prefix switching database regions. The following syslog messages indicate that
the TCAM regions should be reconfigured to allow more entries for IP prefix and adjacency entries.
Oct 10 15:54:57.179: %LSS-1-SDM: IP Prefix Region reached limit. Cannot accept more entries
Oct 10 16:12:45.275: %LSS-1-SDM: IP Adjacency Region reached limit. Cannot accept more entries
The system generates the syslog message for a specific protocol region when the system fails to install
one or more entries in the TCAM because the specified region is full.
To fix this problem you must increase the size of the specified protocol region, using the sdm size
command, and reload the system.
Use the process described in the “Configuring the Switching Database Manager” section on page 11-58
to modify the ip-adjacency and ip-prefix switching database regions in the TCAM.