Cisco Discovery Protocol (CDPv2)

Support for Cisco Discovery Protocol (CDPv1) was added in ExtremeXOS 15.4. This update to the feature adds support for Cisco Discovery Protocol (CDPv2). CDPv2 is a proprietary protocol designed by Cisco to help administrators collect information about nearby, and directly connected, devices. Support for listening, lifting, processing, and periodic transmitting of the CDPv1/v2 control packets on a per-port basis is implemented in this current release.

Supported Platforms

  • Summit X430, X440, X450-G2, X460, X460-G2, X480, X670, X670-G2, X770 series switches
  • BlackDiamond X8 and 8000 series switches
  • E4G-200 and E4G-400 cell site routers

Limitations

  • SNMP is not supported.

Changed CLI Commands

Changes are underlined.

configure cdp voip-vlan [vlan_name | vlan_id | dot1p | untagged | none] ports [port_list | all]

configure cdp trust-extend [untrusted | trusted] ports [port_list | all]

configure cdp cos-extend cos_value ports [port_list | all]

show cdp ports {port_list} {configuration}

configure cdp power-available [advertise | no-advertise] ports [port_list | all]

The output of the following show commands is changed (shown in bold):

X460-48t.1 # show cdp 
CDP Transmit time                : 60 seconds 
CDP Hold time                    : 180 seconds 
CDP Device ID                    : 00:04:96:8B:C2:CA 
CDP Enabled ports                : 1-2, 7 
Power Available TLV Enabled ports: 1-2,23
X460-48t.23 # show cdp ports 
Neighbor Information 
-------------------- 
Port  Device-Id            Hold time  Remote CDP  Port ID 
                                      Version 
----  ---------            ---------  ----------  -------------------- 
1     Eni-Extreme-x440-sw> 149        Version-1   Slot:  1, Port:  1 
2     00:04:96:8B:9D:B0    160        Version-2   Slot:  1, Port:  2 
7     00:04:96:8B:C1:ED    138        Version-2   Slot:  1, Port:  7 
> indicates that the value was truncated to the column size in the output. 
Use the "show cdp neighbor detail" command to see the complete value. 
X460-48t.3 # show cdp neighbor 
Device Id            Local        Hold   Capability  Platform       Port Id 
                     Interface    Time 
-------------------------------------------------------------------------------- 
Eni-Extreme-x440-sw> 1            150     T          X440-24t-10G   Slot:  1, P> 
00:04:96:8B:9D:B0    2            171     T          X440-48t       Slot:  1, P> 
00:04:96:8B:C1:ED    7            134     T          X460-48t       Slot:  1, P> 
--------------------------------------------------------------------------------- 
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge, 
                  S - Switch, H - Host, I - IGMP, r - Repeater 
> indicates that the value was truncated to the column size in the output. 
Use the "detail" option to see the complete value. 
X460-48t.7 # show cdp neighbor detail 
--------------------------------------------------------------------------- 
Device ID               : Eni-Extreme-x440-switch-1 
Port ID (outgoing port) : Slot:  1, Port:  1 
Advertisement Version   : 2 
IP Addresses            : 10.10.10.2 
Platform                : X440-24t-10G 
Interface               : 1 
Holdtime                : 173 

Version                 : 
ExtremeXOS version 15.7.0.22 fixes_v1570b9 by kosharma 
     on Tue Feb 24 11:53:33 IST 2015 

Native VLAN             : 1 
Duplex                  : Full 
SysName                 : X440-24t-10G 
Location                : Chennai 
Power Request Id        : 24333 
Power Management Id     : 2 
Power Drawn             : 1500 mW 
Power Consumed          : 3454 mW 
X460-48t.11 # show cdp ports configuration 
Local Port Information 
---------------------- 
Port     Trust       COS   Voice-VLAN 
----     ----------  ----  -------------------- 
1        Trusted     0     none 
2        Untrusted   4     none 
7        Untrusted   0     Default