Troubleshooting The Aslb Configuration - Cisco WS-C6506 Software Manual

Chapter 54 Configuring ASLB
redirection 13.13.13.13:80:0:tcp dispatched assisted
redirection 13.13.13.13:23:0:tcp dispatched assisted
real 5.100.100.100:80:0:tcp is
real 5.100.100.100:23:0:tcp is
bind 13.13.13.13:80:0:tcp 5.100.100.100:80:0:tcp
bind 13.13.13.13:23:0:tcp 5.100.100.100:23:0:tcp

Troubleshooting the ASLB Configuration

Table 54-6
configuration.
Table 54-6 Troubleshooting the ASLB Configuration
Symptom
LocalDirector does not receive any
traffic.
LocalDirector connection entries are not
purged.
ASLB MLS entries are created in only
one direction.
Backup LocalDirector does not receive
any traffic.
You can ping the servers from the router,
but the ASLB MLS entries are not
created when you send the data traffic.
You see the message:
%CDP-4-NVLANMISMATCH: Native
vlan mismatch detected on port ...
OL-8978-04
lists the possible problem symptoms and recommended actions to troubleshoot the ASLB
Recommended Action
Ensure that the LocalDirector is connected to the ports that you specified by
entering the set lda server and set lda router commands.
Ensure that you configured all the virtual-IP/port pairs by entering the set lda vip
command.
Ensure that you configured all the virtual-IP/port pairs on both the supervisor
engine (set lda vip command) and the LocalDirector.
Ensure that the LocalDirector is in the "dispatched assisted" mode.
Ensure that you configured the IP addresses of the routers, LocalDirector, and
servers following the guidelines in the
Ensure that the router knows how to reach the LocalDirector when the traffic goes
to the virtual-IP address (if the virtual-IP address is on a different subnet than the
router interface).
Ensure that the router MAC address is the same as specified by entering the set
lda mac router command.
Ensure that the LocalDirector MAC address is the same as specified by entering
the set lda mac ld command.
Ensure that you configured the backup LocalDirector ports by entering the set lda
router and set lda server commands; for example, enter set lda router
{router_vlan} 3/7 3/9 and set lda server {server_vlan} 3/8 3/10.
Ensure that the servers were configured to ignore ARP requests for the virtual-IP
address.
1
Disable CDP on the ports that are connected to the LocalDirector (enter the set
cdp disable command).
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Troubleshooting the ASLB Configuration
"IP Addresses" section on page 54-9.
54-25