Cisco 3560G 48TS Software Configuration Guide - Page 789

Recovering from Lost Cluster Member Connectivity

Page 789 highlights

Chapter 35 Troubleshooting Recovering from Lost Cluster Member Connectivity Step 6 Enter Y at the first prompt. The prompts in the setup program vary depending on the switch you selected to be the command switch: Continue with configuration dialog? [yes/no]: y or Configuring global parameters: Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 If this prompt does not appear, enter enable, and press Return. Enter setup, and press Return to start the setup program. Respond to the questions in the setup program. When prompted for the host name, recall that on a command switch, the host name is limited to 28 characters. Do not use -n, where n is a number, as the last characters in a host name for any switch. When prompted for the Telnet (virtual terminal) password, recall that it can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores leading spaces. When prompted for the enable secret and enable passwords, enter the passwords of the failed command switch again. When prompted, make sure to enable the switch as the cluster command switch, and press Return. When prompted, assign a name to the cluster, and press Return. The cluster name can be 1 to 31 alphanumeric characters, dashes, or underscores. When the initial configuration displays, verify that the addresses are correct. If the displayed information is correct, enter Y, and press Return. If this information is not correct, enter N, press Return, and begin again at Step 9. Start your browser, and enter the IP address of the new command switch. From the Cluster menu, select Add to Cluster to display a list of candidate switches to add to the cluster. Recovering from Lost Cluster Member Connectivity Some configurations can prevent the command switch from maintaining contact with member switches. If you are unable to maintain management contact with a member, and the member switch is forwarding packets normally, check for these conflicts: • A member switch (Catalyst 3750, Catalyst 3560, Catalyst 3550, Catalyst 3500 XL, Catalyst 2970, Catalyst 2950, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 switch) cannot connect to the command switch through a port that is defined as a network port. • Catalyst 3500 XL, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 member switches must connect to the command switch through a port that belongs to the same management VLAN. • A member switch (Catalyst 3750, Catalyst 3560, Catalyst 3550, Catalyst 2970, Catalyst 2950, Catalyst 3500 XL, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 switch) connected to the command switch through a secured port can lose connectivity if the port is disabled because of a security violation. 78-16156-01 Catalyst 3560 Switch Software Configuration Guide 35-11

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35-11
Catalyst 3560 Switch Software Configuration Guide
78-16156-01
Chapter 35
Troubleshooting
Recovering from Lost Cluster Member Connectivity
Step 6
Enter
Y
at the first prompt.
The prompts in the setup program vary depending on the switch you selected to be the command switch:
Continue with configuration dialog? [yes/no]:
y
or
Configuring global parameters:
If this prompt does not appear, enter
enable
, and press
Return
. Enter
setup
, and press
Return
to start
the setup program.
Step 7
Respond to the questions in the setup program.
When prompted for the host name, recall that on a command switch, the host name is limited to 28
characters. Do not use
-n
, where
n
is a number, as the last characters in a host name for any switch.
When prompted for the Telnet (virtual terminal) password, recall that it can be from 1 to 25 alphanumeric
characters, is case sensitive, allows spaces, but ignores leading spaces.
Step 8
When prompted for the
enable secret
and
enable
passwords, enter the passwords of the
failed command
switch
again.
Step 9
When prompted, make sure to enable the switch as the cluster command switch, and press
Return
.
Step 10
When prompted, assign a name to the cluster, and press
Return
.
The cluster name can be 1 to 31 alphanumeric characters, dashes, or underscores.
Step 11
When the initial configuration displays, verify that the addresses are correct.
Step 12
If the displayed information is correct, enter
Y
, and press
Return
.
If this information is not correct, enter
N
, press
Return
,
and begin again at Step 9.
Step 13
Start your browser, and enter the IP address of the new command switch.
Step 14
From the Cluster menu, select
Add to Cluster
to display a list of candidate switches to add to the cluster.
Recovering from Lost Cluster Member Connectivity
Some configurations can prevent the command switch from maintaining contact with member switches.
If you are unable to maintain management contact with a member, and the member switch is forwarding
packets normally, check for these conflicts:
A member switch (Catalyst 3750, Catalyst 3560, Catalyst 3550, Catalyst 3500 XL, Catalyst 2970,
Catalyst 2950, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 switch) cannot connect to the
command switch through a port that is defined as a network port.
Catalyst 3500 XL, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 member switches must
connect to the command switch through a port that belongs to the same management VLAN.
A member switch (Catalyst 3750, Catalyst 3560, Catalyst 3550, Catalyst 2970, Catalyst 2950,
Catalyst 3500 XL, Catalyst 2900 XL, Catalyst 2820, and Catalyst 1900 switch) connected to the
command switch through a secured port can lose connectivity if the port is disabled because of a
security violation.