trunk ports

Started by itech, January 11, 2018, 01:47:24 AM

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itech

hi everyone
i have a server host on cisco switch.its interfaces configured as LACP.when i use "sh cdp" command i see  interfaces of server, its contain numeric device id for example 00155d1e9822
Do you have any idea about this issue?

icecream-guy

i've seen stuff like this when I do a 'show cdp neigh' and Cisco phones are connected.
probably just a device ID.
:professorcat:

My Moral Fibers have been cut.

deanwebb

That's a Microsoft MAC address, so the MAC given for the LACP is likely software-configured to override the physical MAC addresses on the server.
Take a baseball bat and trash all the routers, shout out "IT'S A NETWORK PROBLEM NOW, SUCKERS!" and then peel out of the parking lot in your Ferrari.
"The world could perish if people only worked on things that were easy to handle." -- Vladimir Savchenko
Вопросы есть? Вопросов нет! | BCEB: Belkin Certified Expert Baffler | "Plan B is Plan A with an element of panic." -- John Clarke
Accounting is architecture, remember that!
Air gaps are high-latency Internet connections.

icecream-guy

Quote from: deanwebb on January 11, 2018, 09:48:19 AM
That's a Microsoft MAC address, so the MAC given for the LACP is likely software-configured to override the physical MAC addresses on the server.

like I said., device ID
:professorcat:

My Moral Fibers have been cut.

itech

Quote from: deanwebb on January 11, 2018, 09:48:19 AM
That's a Microsoft MAC address, so the MAC given for the LACP is likely software-configured to override the physical MAC addresses on the server.
yes this is mac address of physical server but when i look at the details ,this server's ip address seems to belong to the virtual server

deanwebb

Quote from: itech on January 12, 2018, 12:59:53 AM
Quote from: deanwebb on January 11, 2018, 09:48:19 AM
That's a Microsoft MAC address, so the MAC given for the LACP is likely software-configured to override the physical MAC addresses on the server.
yes this is mac address of physical server but when i look at the details ,this server's ip address seems to belong to the virtual server
... which is using the virtual switch to reach the network, so it will use the MAC address of the server when it connects to the physical network.
Take a baseball bat and trash all the routers, shout out "IT'S A NETWORK PROBLEM NOW, SUCKERS!" and then peel out of the parking lot in your Ferrari.
"The world could perish if people only worked on things that were easy to handle." -- Vladimir Savchenko
Вопросы есть? Вопросов нет! | BCEB: Belkin Certified Expert Baffler | "Plan B is Plan A with an element of panic." -- John Clarke
Accounting is architecture, remember that!
Air gaps are high-latency Internet connections.