topic RE: Neighbours IP Address in ExtremeSwitching (EXOS/Switch Engine)

Neighbours IP Address

hafiz — Mon, 04 Jul 2016 09:04:00 GMT

Hi guys,

I'm facing a small issue here. I'm trying to find the neighbor switches IP address that connect to my core switch. I have tried to use command "cdp" but no ip appeared.

I have tried to enable lldp on my core switch however no ip appeared also.

Is there anything that I must configure so that I can see all the IP addresses that connect to my core switch?

Thank you in advance

RE: Neighbours IP Address

Tripathy__Priya — Mon, 04 Jul 2016 09:36:00 GMT

Hey Hafiz,

Thanks for joining the Hub....

Coming to your query regarding the Neighbor IP addresses connected to the central switch, if we consider them as Extreme switches then the only option i hope is available to run the command show edp ports all on the extreme switches. Whereas for Cisco switches show cdp neighbor discovery would give you the clear picture in detecting all the neighbor peers connected to the central one.

Hope this clarifies you for your queries.

RE: Neighbours IP Address

Senguttuvan__Ar — Mon, 04 Jul 2016 10:00:00 GMT

Hi,

If you would want to know the neighbor switches IP address, then, "show edp ports detail" output will give you the IP.

RE: Neighbours IP Address

hafiz — Mon, 04 Jul 2016 10:22:00 GMT

Please refer below. No IP address

RE: Neighbours IP Address

André_Herkenrat — Mon, 04 Jul 2016 10:56:00 GMT

You are running a EXOS 12.0.3.16, which is really old. I would propose to update to a more recent version. If you are running one of the "fifties" use a 15.3.5 if you use a more recent product I would recommend a 16.1.3.

/André

RE: Neighbours IP Address

Senguttuvan__Ar — Mon, 04 Jul 2016 10:58:00 GMT

Hi,

Could you test it after initiating a ping between the switches. There should have been a ARP entry on the uplink for the IP to get populated in "show edp ports detail" output. Below is the sample output from my lab switch:

RE: Neighbours IP Address

Erik_Auerswald — Mon, 04 Jul 2016 19:22:00 GMT

Hi,

you should consider the use of LLDP. This is really nice in mixed-vendor environments, since most networking gear (even from Cisco) and many servers support LLDP.

To show all detected neighbors in detail:
show lldp neighbors detailedYou can (and usually should) enable additional information sent via LLDP:
enable lldp ports configure lldp port advertise port-description configure lldp port advertise system-name configure lldp port advertise system-capabilities configure lldp port advertise management-address
I have just verified that the above configuration is available in EXOS 15.3, I do not have earlier versions available to check.

Br,
Erik

RE: Neighbours IP Address

dflouret — Mon, 04 Jul 2016 22:51:00 GMT

Hafiz,

EXOS v12.0 does support the advertisement of management address information through LLDP. Now, you must understand that this IP address is the one configured in the mgmt vlan. If you don't have al IP address configured for the mgmt vlan, then the switch will send the system MAC address instead...

Then, the show lldp neighbors detailed command will show the management address of each neighbor.
lab0-sw2.4 # show lldp neighbors detailed

-----------------------------------------------------------------------------
LLDP Port 2 detected 1 neighbor
Neighbor: 00:01:30:DF:00:01/1, age 9 seconds
- Chassis ID type: MAC address (4)
Chassis ID : 00:01:30:DF:00:01
- Port ID type: ifName (5)
Port ID : "1"
- Time To Live: 120 seconds
- Port Description: ""
- System Name: "lab0-sw1"
- System Description: "ExtremeXOS (Summit-PC) version 16.1.1.4 16.1.1.4 \
by release-manager on Fri Jun 12 17:09:43 EDT 201\
5"
- System Capabilities : "Bridge, Router"
Enabled Capabilities: "Bridge"
- Management Address Subtype: IPv4 (1)
Management Address : 172.16.56.11
Interface Number Subtype : ifIndex (2)
Interface Number : 1000018
Object ID String : "null"

lab0-sw2.5 #

RE: Neighbours IP Address

Supermac7 — Tue, 05 Jul 2016 07:16:00 GMT

You need to configure IP addresses on the vlans on both switches. Then you'll see that info with show edp port <> detail.

RE: Neighbours IP Address

Erik_Auerswald — Tue, 05 Jul 2016 07:16:00 GMT

The command
show edp ports all detailshows all IP addresses configured on VLANs of EXOS neighbor switches with EDP enabled.

Thanks!