Ethernet Fabric (VDX, CNA)

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Occasional Contributor
Posts: 8
Registered: ‎10-25-2010

VCS Fabric & DWDM

Hi,

anyone know if it is possible to form a fabric with two switches connected through a DWDM line?

It is a supported/recommended topology?

Thank you.

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

Re: VCS Fabric & DWDM

Hi JorgeFG ,

     There is nothing in the manual or datasheet that says "yes" however the VDX does support 10G LR so an active DWDM setup would/should be

completely transparent to the switch.

    

     I can see no support for passive DWDM (no DWDM SFP+ optics) in the Brocade price list.

     Hopefully somebody can answer this one a bit better.

Thanks

Michael.

Occasional Contributor
Posts: 8
Registered: ‎10-25-2010

Re: VCS Fabric & DWDM

Ok. Now there is another question.
At the remote site I have no network infrastructure to connect the VDXs ethernet management ports.
Would it be possible to access the management IP through a dedicated VLAN on the switch?

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

Re: VCS Fabric & DWDM

Hi,

     That would be a yes and no answer

Yes you can IF you are NOT using EnternetFaabric (VCS mode)

No you can not if you are using VCS mode.

see below

Configuring Inband Management interfaces

Inband Management on the Brocade VDX 6720 switches allows a management station to communicate with the CP through Layer 3-enabled front-end Ethernet ports. The purpose of this feature is to facilitate tasks such as downloading firmware, SNMP polling, SNMP traps, troubleshooting, and configuration when an out-of-band management interface is not available.

NOTE

You can only configure the Inband Management interface if the switch is in standalone mode. The management station can connect to the switch using SSH, SCP, or Telnet. Inband Management is supported on the following interfaces:

• VLAN

• Physical (router) ports

• Port-channel interfaces

To implement Inband Management on the Brocade VDX 6720 switches, you must have an understanding of implementing IP routes and subnets. The front-end port that you configure acts as a router with IP forwarding implemented to allow communication to the CP through the port processors and then out of the ports. Therefore, it is necessary to implement numerous IP routes throughout the network to allow the communication to take place. The management station IP address and Ethernet port interface IP address must be in the same subnet

Thanks

Michael.

Occasional Contributor
Posts: 8
Registered: ‎10-25-2010

Re: VCS Fabric & DWDM

In VCS mode ... could make a trick and connect the management port to a ethernet port in the same switch with a cable?

Not a cool solution ... but ...

Contributor
Posts: 37
Registered: ‎03-15-2011

Re: VCS Fabric & DWDM

Hi
I deployed VDX VCS fabric where 10G ISL's are established over DWDM (two datacenters). We used standard LR optics to DWDM MUX (ADVA). But there is distance limitation. Currently (NOS 2.1.1) supports ISL distance up to 10KM (only supported on 40/60 ports boxes, not-supported on 16/24 ports). Look at 'long-distance-isl' command in configuration guide.

Frequent Contributor
Posts: 131
Registered: ‎07-02-2012

Re: VCS Fabric & DWDM

Hello Jarek6,

Can you update the community on this implementation pls ?

Have you run into some kind of issus ? limitations ? etc.

Was your experience conclusive ?

Thanks.

Y.

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