Cisco Cisco 1700 2600 3600 3700 Series VPN Module White Paper
© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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Four actions occur when you issue this command:
●
The running configuration of the individual switch is converted into a three-level virtual switch interface
notation. Two-level interface configurations (such as 10 GigabitEthernet 5/4) are converted into three-level
interfaces (such as 10 GigabitEthernet 1/5/4 in Switch 1 and 10 GigabitEthernet 2/5/4 in Switch 2).
●
The startup configuration is updated with the three-number notation.
●
A copy of the original startup configuration converted to three-number notation is written to the multilayer
switch feature card (MSFC) bootflash of the respective switch. Both switches reload.
Note that the command switch convert mode virtual is not stored in the startup configuration because it is not a
configuration command. Instead, the following line is added to the startup configuration under the switch virtual
domain:
When the two switches are brought online, they proceed with VSL initialization and initialize their respective VSL
ports. The two switches communicate with each other and determine active and standby roles. This exchange of
information is evident through the following console messages:
VSS#sh run | begin switch virtual domain
switch virtual domain 100
switch mode virtual
When the two switches are brought online, they proceed with VSL initialization and initialize their respective VSL
ports. The two switches communicate with each other and determine active and standby roles. This exchange of
information is evident through the following console messages:
System detected Virtual Switch
configuration...
Interface TenGigabitEthernet 1/5/4 is
member of PortChannel 1
Interface TenGigabitEthernet 1/5/5 is
member of PortChannel 1
configuration...
Interface TenGigabitEthernet 1/5/4 is
member of PortChannel 1
Interface TenGigabitEthernet 1/5/5 is
member of PortChannel 1
<snip>
00:00:26: %VSL_BRINGUP-6-MODULE_UP:
VSL module in slot 5 switch 1 brought
up
00:00:26: %VSL_BRINGUP-6-MODULE_UP:
VSL module in slot 5 switch 1 brought
up
Initializing as Virtual Switch active
System detected Virtual Switch
configuration...
Interface TenGigabitEthernet 2/5/4 is
member of PortChannel 2
Interface TenGigabitEthernet 2/5/5 is
member of PortChannel 2
configuration...
Interface TenGigabitEthernet 2/5/4 is
member of PortChannel 2
Interface TenGigabitEthernet 2/5/5 is
member of PortChannel 2
<snip>
00:00:26: %VSL_BRINGUP-6-MODULE_UP:
VSL module in slot 5 switch 2 brought
up
00:00:26: %VSL_BRINGUP-6-MODULE_UP:
VSL module in slot 5 switch 2 brought
up
Initializing as Virtual Switch standby
After the VSL is initialized and the Cisco Virtual Switching System becomes active, you may notice that the console
is active only for the active virtual switch and has been disabled for the standby virtual switch:
00:08:01: SW1_SP: Card inserted in
Switch_number = 2,
Switch_number = 2,
physical slot 3, interfaces are now
online
online
VSS >
VSS>en
VSS#
00:01:43: %CRYPTO-6-ISAKMP_ON_OFF:
ISAKMP is OFF
ISAKMP is OFF
00:01:43: %CRYPTO-6-ISAKMP_ON_OFF:
ISAKMP is OFF
ISAKMP is OFF
VSS-sdby>
Standby console disabled