Port Interface Index

To determine the interface index (IfIndex), you can calculate it, or use the CLI command provided in this section.

As a result of channelization support, the ifIndex of each channelization–capable port increases by 4. The number is reserved for the 3 sub-ports when channelization is enabled.

VSP 4450 Series and XA1400 Series

For switches that do not include channelization-capable ports, use the following equation to determine the IfIndex of a port:

(192 x slot number) + (port number – 1)

For example, the interface index of port 1/50 is 241.

The VSP 4450 Series and XA1400 Series use one slot.

5520 Series, VSP 4900 Series, VSP 7200 Series, VSP 7400 Series, VSP 8000 Series , and VSP 8600 Series

For switches that include channelization-capable ports, use the following equations to determine the IfIndex of a port:

The slot numbers are 1-2 for the 5520 Series.

The slot numbers are 1-2 for the VSP 4900 Series.

The slot numbers are 1-2 for the VSP 7200 Series.

The slot number is 1 for the VSP 7400 Series.

The slot numbers are 1-2 for the VSP 8200 Series.

The slot numbers are 1-4 for VSP 8400 Series.

The slot numbers are 1–8 for VSP 8600 Series.

CLI command

To determine the port interface index through the CLI, use the following command:

show interfaces gigabitEthernet

The following example shows an output for this command:

Switch:1(config)#show interfaces gigabitEthernet 

==========================================================================================
                                      Port Interface
==========================================================================================
PORT                            LINK  PORT           PHYSICAL          STATUS
NUM      INDEX DESCRIPTION      TRAP  LOCK     MTU   ADDRESS           ADMIN  OPERATE
------------------------------------------------------------------------------------------
1/1/1    192   40GbCR4BoC-Channel true  false    1950  00:c0:ff:8b:50:00 up     up
1/1/2    193   40GbCR4BoC-Channel true  false    1950  00:c0:ff:8b:50:01 down   down
1/1/3    194   40GbCR4BoC-Channel true  false    1950  00:c0:ff:8b:50:02 down   down
1/1/4    195   40GbCR4BoC-Channel true  false    1950  00:c0:ff:8b:50:03 down   down
1/2      196   100GbNone          true  false    1950  00:c0:ff:8b:50:04 down   down
1/3      200   100GbNone          true  false    1950  00:c0:ff:8b:50:08 down   down
1/4      204   100GbNone          true  false    1950  00:c0:ff:8b:50:0c down   down
1/5      208   100GbNone          true  false    1950  00:c0:ff:8b:50:10 down   down
1/6      212   100GbNone          true  false    1950  00:c0:ff:8b:50:14 down   down
1/7      216   100GbNone          true  false    1950  00:c0:ff:8b:50:18 down   down
1/8      220   100GbNone          true  false    1950  00:c0:ff:8b:50:1c down   down
1/9      224   100GbNone          true  false    1950  00:c0:ff:8b:50:20 down   down
1/10     228   100GbNone          true  false    1950  00:c0:ff:8b:50:24 down   down
1/11     232   100GbNone          true  false    1950  00:c0:ff:8b:50:28 down   down
1/12/1   236   100GbNone-Channel  true  false    1950  00:c0:ff:8b:50:2c down   down
1/12/2   237   100GbNone-Channel  true  false    1950  00:c0:ff:8b:50:2d down   down
1/12/3   238   100GbNone-Channel  true  false    1950  00:c0:ff:8b:50:2e down   down
1/12/4   239   100GbNone-Channel  true  false    1950  00:c0:ff:8b:50:2f down   down
1/13     240   100GbNone          true  false    1950  00:c0:ff:8b:50:30 down   down
1/14     244   100GbNone          true  false    1950  00:c0:ff:8b:50:34 down   down
1/15     248   100GbNone          true  false    1950  00:c0:ff:8b:50:38 down   down
1/16     252   100GbNone          true  false    1950  00:c0:ff:8b:50:3c down   down
1/17     256   100GbNone          true  false    1950  00:c0:ff:8b:50:40 down   down
1/18     260   100GbNone          true  false    1950  00:c0:ff:8b:50:44 down   down
1/19     264   100GbNone          true  false    1950  00:c0:ff:8b:50:48 down   down
1/20     268   100GbNone          true  false    1950  00:c0:ff:8b:50:4c down   down
1/21     272   100GbNone          true  false    1950  00:c0:ff:8b:50:50 down   down
1/22     276   100GbNone          true  false    1950  00:c0:ff:8b:50:54 down   down
1/23     280   100GbNone          true  false    1950  00:c0:ff:8b:50:58 down   down
1/24     284   100GbNone          true  false    1950  00:c0:ff:8b:50:5c down   down
1/25     288   100GbCR4           true  false    1950  00:c0:ff:8b:50:60 down   down
1/26     292   100GbCR4           true  false    1950  00:c0:ff:8b:50:64 down   down
1/27     296   100GbNone          true  false    1950  00:c0:ff:8b:50:68 down   down
1/28     300   100GbNone          true  false    1950  00:c0:ff:8b:50:6c down   down
1/29     301   100GbNone          true  false    1950  00:c0:ff:8b:50:6d down   down
1/30     305   100GbNone          true  false    1950  00:c0:ff:8b:50:71 down   down
1/31     309   100GbNone          true  false    1950  00:c0:ff:8b:50:75 down   down
1/32     313   100GbNone          true  false    1950  00:c0:ff:8b:50:79 down   down
1/s1     320   10GbInsight        true  false    1950  00:c0:ff:8b:50:7d down   down
1/s2     321   10GbInsight        true  false    1950  00:c0:ff:8b:50:7e down   down
Note

Note

1/s1 and 1/s2 are ports used by Extreme Integrated Application Hosting (IAH) virtual machines only.