Solved

How do you configure an SFP port on a ISR 2911 router

Posted on 2014-12-16
5
194 Views
Last Modified: 2014-12-16
We have a 2911 ISR, but only one SFP will light up.   Two additional SPFs will not lite.   The one that lights up is connected to the ISP.   We have a switch that we need to connect to, using it's SFP.  When we plug the ISP connection into the switches SFP, it lights, so we no the switch is good.  Are there licenscing issue or any thing I'm missing?
0
Comment
Question by:jimmycher
  • 3
  • 2
5 Comments
 
LVL 11

Expert Comment

by:rharland2009
ID: 40502583
Can you show us the config of the switch? Perhaps the ports are disabled,
0
 

Author Comment

by:jimmycher
ID: 40502618
No, the ports are active.  

The router G0/0/0 is hot, into the ISP.


We plugged the ISP connection directly into the Switch's SFP, and it lit.   We also plugged the ISP directly into G0/2/0 and it lit.  The problem is when G0/0/0 is into the ISP, we can not connect router G0/2/0 into the switchs SFP.  They both say down/down.    

Also, the G/0/0/0 SFP allows me to enter speed and duplex commands, but not G0/2/0. ??
  It looks like the Layer 1 conx are sound, and the ports are hot.   I'm thinking a license issue????
0
 
LVL 11

Accepted Solution

by:
rharland2009 earned 500 total points
ID: 40502639
Just to clarify, when you say 'they both say down/down', do you mean that G0/0/0 goes down when you plug G0/2/0 into the switch, or just that neither the switch nor router end come up on the G0/2/0 connection?
I guess it must be licensing or some other limitation. Are these ports on-chassis or in a module?
0
 

Author Comment

by:jimmycher
ID: 40503096
Haven't completed the install yet, but it appears that the SFP were okay; I did not set an Interface VLAN on the remote switch, nor did it have hosts, so it appeared down/down.   Probably the fourth time I've learned that lesson;  I will never understand why it doesn't say up/down when physically connected.....

Thanks for quick replies.

jc
0
 

Author Closing Comment

by:jimmycher
ID: 40503098
thanks.
0

Featured Post

Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Configuring network clients can be a chore, especially if there are a large number of them or a lot of itinerant users.  DHCP dynamically manages this process, much to the relief of users and administrators alike!
Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now