Skip Navigation Links
Exit Print View
| Sun Ethernet Fabric Operating System ### LLDP Administration Guide

Search Scope:

- This Document
- Entire Library

## Enable an Existing IP Interface

If the IP address for an existing IP interface is changed, the change to the address is treated as a deletion of one of the management addresses and an addition of a new management address by LLDP. Note that in the following instructions, `VLAN 2` is configured with IP address `15.0.0.1` and is enabled for the `extreme-ethernet interface 0/1`.

1. At switch 1, change the IP address of `VLAN 2` to `16.0.0.1`:

       SEFOS# configure terminal
       SEFOS(config)# interface vlan 2
       SEFOS(config-if)# shutdown
       SEFOS(config-if)# ip address 16.0.0.1 255.255.255.0
       SEFOS(config-if)# no shutdown
       SEFOS(config-if)# end

   The following list describes the impact of the change in the IP address:

   - The entry corresponding to the old IP address of `VLAN 2` is deleted from the LLDP management address table.

   - The entry corresponding to `16.0.0.1` is created.

   - The TLV transmission status of `16.0.0.1` is disabled by default.

2. Review the IP addresses that are configured for the system and TLV transmission status of the addresses.

       SEFOS# show lldp local mgmt-addr
       Management Address            TxEnabledPorts
       ------------------            --------------
       12.0.0.1                    Ex0/1
       16.0.0.1

   The TxEnabledPorts value for management address `16.0.0.1` does not display any interfaces. The newly configured IP address `16.0.0.1`, has not advertised through extreme-ethernet interface, `Ex0/1`, and the entry corresponding to IP address `15.0.0.1` was deleted from the remote table.

3. At switch 2, review the learned neighbor information on the interface.

       SEFOS# show lldp neighbors extreme-ethernet 0/1 detail
       ...
       Management Addresses        :
       IfId        SubType    Address        OID
       ----        -------    -------        ---
       1009        IPv4        12.0.0.1        1 3 6 1 2 1 2 2 1 1
       ...

   The entry corresponding to IP address `15.0.0.1` was removed from the list of management addresses.

Copyright © 2010, 2013, Oracle and/or its affiliates. All rights reserved. Legal Notices |