05-12-2011 04:42 PM
I have several devices that support 802.11ad..
I have one item Synology Rackstation that supports this on my other switches.
I have it plugged into port 20 and 22.
Within the CLI on the 624G I configure both ports and use the command link-aggregate active and it assigns both ports a key = 1
After I do that no device I have that supports this 802.11ad can establish a connection until I do link-aggregate off on the port.
I have searched the configuration manual and I'm at a loss.
05-13-2011 12:23 PM
For anyone who runs into this issue.
The answer was this...
For the purpose of link aggregation, the ports on Brocade devices are grouped into pairs of two; one odd-numbered port, and the next even-numbered port. When you configure link aggregation on a port (for instance, on an odd-numbered port), this port will be blocked and unable to join a trunk group until you configure the adjacent port (the even-numbered port) as part of the aggregate link. When you configure both ports with link aggregation and assign both ports the same key, both ports are able to join a trunk group. Once the ports become part of a trunk group, they can transmit and receive LACP packets.
I happened to have my Synology plugged into Port 20 and Port 22. Brocade blocked Port 22. I moved it to Port 21 , configured the key and renabled and problem solved.
05-16-2011 10:57 AM
Thanks for posting your solution. Perhaps someone realized that the odd + even requirement was sufficiently odd to be worth fixing in newer firmware. At least the FastIron 7.2.02 config guide, covering the FWS624G, claims support for "flexible trunk groups":
Port assignment on a module need not be consecutive. The port range can contain gaps. For example, you can configure ports 1, 3, and 4 (excluding 2). Refer to “Support for flexible trunk group membership” on page 528.
On our FCX core stack, 1/1/9 and 2/1/9 seem to be trunked OK to another stack....though it took a bit more futzing than I expected.