Ethernet Switches & Routers

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Contributor
Posts: 37
Registered: ‎11-07-2010

Brocade CES 2024 to Cisco DWDM 15454

Has anybody experienced any issues when connecting to a Cisco DWDM via 1gig MM fiber? I am having trouble and I have done debugs, the same message displayed every 6 seconds. The TX/RX levels at the CES and DWDM are at normal levels but the link wont come up. Below is an sample of the messages being scrolled.

Aug 19 19:51:08 IPV6 route table verification pkt for (::/0 -> ::/0)
Aug 19 19:51:08  Rout cnt 0 Total Route Cnt 0 Rinfo cnt 0 Total Rinfo Cnt 0
Aug 19 19:51:08  Sum Of  IP 0 Mask 0 NextHop 0 OutInt 0

Any idea's??

Contributor
Posts: 37
Registered: ‎11-07-2010

Re: Brocade CES 2024 to Cisco DWDM 15454

Update:

I was able to get the link to come up by hard codding the speed to gig full. I have an OSPF network but this port is flapping(every 3-15 minutes) and will not pass any taffic at all. The link will form a full adjacency and I can see it via "sh fdp nei"

Any thoughts?

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: Brocade CES 2024 to Cisco DWDM 15454

if the optic support optical monitoring then turn it on and check that first.

NetIron(config)# optical-monitor

Or for single a port

NetIron(config)# interface ethernet 1/1

NetIron(config-if-e10000-1/1)# optical-monitor

Then

Syntax: optical-monitor <alarm-interval>

The optional <alarm-interval> variable sets the interval in minutes between which alarms or  messages are sent. The default interval is 3 minutes.

You can view the XFP optical monitoring information using the show optic command as displayed in the following.

NetIron#show optic 4

Port      Temperature      Tx Power      Rx Power Tx Bias Current

+----+-----------+----------+------------+-------------------+

4/1      30.8242 C      -001.8822 dBm   -002.5908 dBm 41.790 mA

Normal     Normal           Normal          Normal

This should at least rule any optical issues.

Thanks

Michael.

Contributor
Posts: 37
Registered: ‎11-07-2010

Re: Brocade CES 2024 to Cisco DWDM 15454

Michael-

I have checked the optics and they are within normal readings, please see below.

sh optic 1
Port  Temperature   Tx Power     Rx Power     Tx Bias Current
+----+-----------+----------+------------+-------------------+
1/1   28.5742 C  -005.5330 dBm -004.9241 dBm    6.212 mA
       Normal       Normal        Normal      Normal

Contributor
Posts: 37
Registered: ‎11-07-2010

Re: Brocade CES 2024 to Cisco DWDM 15454

Problem resolved.

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: Brocade CES 2024 to Cisco DWDM 15454

Hi JScott,

     What was the issue?  and the fix?

Thanks

Michael.

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: Brocade CES 2024 to Cisco DWDM 15454

Hi JScott,

What was the issue? and the fix?

Thanks

Michael.

Contributor
Posts: 37
Registered: ‎11-07-2010

Re: Brocade CES 2024 to Cisco DWDM 15454

Hi mschip,

By default on the Cisco 15454 DWDM auto negotiate and flow control is turned off. The resolution was to hard code the speed at both ends of the link.

For anyone who may not know this can be done by going to the interface and entering the command "speed-1000full" or "gig-default neg-off"

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: Brocade CES 2024 to Cisco DWDM 15454

Hi Jscott,

     Thanks for the info, glad you found the fix.

Thanks

Michael.

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