11-01-2012 08:59 AM - edited 03-04-2019 06:01 PM
I have a question that I cannot find an answer to. I have a 2811 router at our Switzerland location that has 2 single WICS. When I do a sho ver it gives me the following information:
2 FastEthernet interfaces
2 Serial interfaces
2 Channelized E1/PRI ports
1 Virtual Private Network (VPN) Module
I am wondering why it shows the router having 2 serial interfaces when there are no serial modules.
The following portion of the config created the serials:
controller E1 0/0/0
channel-group 0 timeslots 1-31
description Sprint Circuit
!
controller E1 0/1/0
framing NO-CRC4
channel-group 1 timeslots 1-31
description Qwest circuit
Interfaces Created:
interface Serial0/0/0:0
interface Serial0/1/0:1
Once again, my question is, "Why would this be done?"
Just curious.
Thanks,
Scott
Solved! Go to Solution.
11-01-2012 12:09 PM
Because when used for data, E1 is a serial interface.
11-01-2012 12:18 PM
Hello Scott,
It seems to be you have a VWIC2-2MFT-T1/E1 that you configured as an E1 after applying a "card type E1" command. Those are indeed serial interfaces unless you are trying to configure a PRI (voice or data). Probably, you are confused for that card does not use a Cisco smart serial connector as an HWIC-1T does but they are always considered serial interfaces for they are T1/E1 circuits.
What is the purpose of this configuration?
Are you configuring a voice or data circuit?
Are you supposed to build a multilink?
Regards.
11-01-2012 12:09 PM
Because when used for data, E1 is a serial interface.
11-01-2012 12:18 PM
Hello Scott,
It seems to be you have a VWIC2-2MFT-T1/E1 that you configured as an E1 after applying a "card type E1" command. Those are indeed serial interfaces unless you are trying to configure a PRI (voice or data). Probably, you are confused for that card does not use a Cisco smart serial connector as an HWIC-1T does but they are always considered serial interfaces for they are T1/E1 circuits.
What is the purpose of this configuration?
Are you configuring a voice or data circuit?
Are you supposed to build a multilink?
Regards.
11-01-2012 12:25 PM
Paolo abd Jose,
Thank you for your responses. I am not having any issues with the device. .I was just curious why the configuration showed serail when in fact, there were no physical serial cards. The congiuration on this router has been around years before I even started at the company. The question was brought up to me by a colleague and I guess I had never paid attention to that before.
Everything y'all have mentioned makes perfect sense. thanks for the education!
Scott
11-01-2012 12:39 PM
Thank you for the nice rating and good luck!
11-01-2012 12:41 PM
Thanks Scott! It was a pleasure sharing some info with you.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide