Upgrading Issu To Cisco Ios Xe 3.4.0Sg/15.1(2)Sg From A Prior Release - Cisco Catalyst 4500 series Administration Manual

Performing the ISSU Process

Upgrading ISSU to Cisco IOS XE 3.4.0SG/15.1(2)SG from a Prior Release

Because images prior to Cisco IOS XE 3.4.0SG/15.1(2)SG use the earlier CLI format and Cisco IOS XE
3.4.0SG and 15.1(2)SG images use a newer CLI format, your upgrade consists of the following:
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A configuration like the following should exist on pre-Cisco IOS XE 3.4.0SG/15.1(2)SG image:
ip vrf mgmtVrf
!
interface FastEthernet1
ip vrf forwarding mgmtVrf
ip address 10.1.1.1 255.255.255.0
speed auto
duplex auto
ipv6 address 2000::1/64
!
Step 1 Perform an ISSU upgrade to a Cisco IOS XE 3.4.0SG/15.1(2)SG image.
Step 2 Run the VRF upgrade command.
Switch# config t
Enter configuration commands, one per line.
Switch(config)# vrf upgrade-cli multi-af-mode common-policies vrf mgmtVrf
You are about to upgrade to the multi-AF VRF syntax commands.
You will lose any IPv6 address configured on interfaces
belonging to upgraded VRFs.
Are you sure ? [yes]:
Number of VRFs upgraded: 1
Switch(config)# exit
Your configuration will appear as follows:
vrf definition mgmtVrf
!
address-family ipv4
exit-address-family
!
interface FastEthernet1
vrf forwarding mgmtVrf
ip address 10.1.1.1 255.255.255.0
speed auto
duplex auto
!
Step 3 Configure the switch to enable the IPv6 address family and add the IPv6 address.
Switch# config t
Enter configuration commands, one per line.
Switch(config)# vrf definition mgmtVrf
Switch(config-vrf)# address-family ipv6
Switch(config-vrf-af)# exit
Switch(config-vrf)# exit
Switch(config)# interface fa1
Switch(config-if)# ipv6 address 2000::1/64
Software Configuration Guide—Release IOS XE 3.6.0SG and IOS 15.2(2)SG
6-16
Upgrading the image on your switch to Cisco IOS XE 3.4.0SG/15.1(2)SG.
Upgrading mgmtVrf from the earlier CLI format to the later format, removing any IPv6 addresses
on the interface.
Enabling IPv6 address family under mgmtVrf, and reconfigure IPv6 addresses on fa1.
Chapter 6 Configuring the Cisco IOS In-Service Software Upgrade Process
End with CNTL/Z.
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