[c-nsp] CDP interoperability

[Peter Rathlev]

On Mon, 2012-12-10 at 17:54 +0200, Saku Ytti wrote:
> Luckily I think Cisco won't tag LLDP so maybe you can migrate there.

A Sup720 running SXI with subinterfaces will send LLDP frames in each
VLAN it seems, or at least that's what a neighboring 3560 seems to
think:

 Switch1#show lldp nei
 Capability codes:
     (R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
     (W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
 
 Device ID       Local Intf   Hold-time  Capability    Port ID
 SomeRouter      Gi0/25       120        R             Gi4/6.445
 SomeRouter      Gi0/25       120        R             Gi4/6.507
 SomeRouter      Gi0/25       120        R             Gi4/6.443
 SomeRouter      Gi0/25       120        R             Gi4/6.246
 SomeRouter      Gi0/25       120        R             Gi4/6.991
 SomeRouter      Gi0/25       120        R             Gi4/6.308
 SomeRouter      Gi0/25       120        R             Gi4/6.975
 SomeRouter      Gi0/25       120        R             Gi4/6
 Phone1          Gi0/16       180        B,T           fca8.41--.----
 Phone2          Gi0/15       180        B,T           fca8.41--.----
 Switch2         Gi0/27       120        B             Gi0/27
 Switch2         Gi0/28       120        B             Gi0/28
 Switch3         Gi0/26       120        B             Gi1/0/1
 
 Total entries displayed: 13
 
 Switch1#

The Sup720 will see just one neighbor:

 SomeRouter#show lldp neighbors Gi4/6
 Capability codes:
     (R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
     (W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other 

 Device ID           Local Intf     Hold-time  Capability      Port ID
 Switch1             Gi4/6          120        B               Gi0/25

 Total entries displayed: 1

 SomeRouter#

This is a bit annoying IMHO.

-- 
Peter