I know that MUX-UNI can only be configure on a 7600 running certain IOS version, SR and SX I believe. Does that not include SRE?
Logged into a 7600 running 12.2(33)SRE9a, with the following configuration;
interface GigabitEthernet8/3 description Link to a box no ip address ! interface GigabitEthernet8/3.123 description L3 link to a box encapsulation dot1Q 556 ip address 10.21.225.65 255.255.255.248 ! interface GigabitEthernet8/3.456 description PWE3 to a box encapsulation dot1Q 920 xconnect 172.16.25.25 1026 encapsulation mpls mtu 1500
When I try to reconfigure this as a MUX-UNI interface the following happens;
r1(config-if)#int gi8/3 r1(config-if)#switchport Subinterfaces configured on this interface will not be available after mode change. To re-use reserved internal vlans, subinterfaces need to be deleted before changing the mode. Proceed with the command? [confirm]
I can't find any Cisco doc's that say "yes" or "no" definitively on this.
The supervisor is a RSP720-3CXl-GE. The line card I was trying to configure is an old WS-X6516A-GBIC. But I thought this wasn't depending on the line card but the IOS. I configured another port on that line card and selected "confirm" and sure enough it shut down and removed the sub-interfaces. I tried to then configure the port as a switchport first and then add sub-interfaces but I couldn't assign an IP address to the sub-interface;
r1(config)#do show run | b 8/1 interface GigabitEthernet8/1 switchport switchport trunk encapsulation dot1q switchport trunk allowed vlan 58,59 switchport mode trunk ! interface GigabitEthernet8/1.58 r1(config)#int gi8/1.58 r1(config-subif)#ip ? Interface IP configuration subcommands: access-group Specify access control for packets admission Apply Network Admission Control auth-proxy Apply authenticaton proxy dhcp Configure DHCP parameters for this interface header-compression IPHC options rsvp RSVP Interface Commands vrf VPN Routing/Forwarding parameters on the interface
I tried the same configuration on a different line card, WS-X6748-GE-TX, same result, couldn't configure an IP address because the option is not given under the sub-interface configuration mode.