Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario Pagina 161

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Multi-Service IronWare Switching Configuration Guide 131
53-1003036-02
Deploying a LAG
5
When dynamic rebalancing is taking place, there will be dropped packets. This is because as
the forwarding port for a LAG OIF changes, the FID and the MVID of the forwarding entry
change as well, thus requiring a reprogramming of the PRAM before the changes take effect.
This results in a brief disruption in traffic.
As of Multi-Service IronWare version 05.3.00, dynamic rebalancing will done only for Layer 3
multicast traffic and not for Layer 2 Snooping traffic.
Multicast dynamic load rebalancing on a LAG is only available on the Brocade NetIron XMR and
Brocade MLX series. This feature is not available in the Brocade NetIron CES and Brocade
NetIron CER.
Configuring multicast dynamic load rebalancing
Once the dynamic load rebalancing has been configured, anytime a port in a LAG interface
becomes active or a new port is added to the LAG interface, multicast traffic over the LAG interface
will be rebalanced across all VRFs.
Dynamic load rebalancing has to be explicitly enabled (on all trunks and on all VRFs in the system)
using the ip multicast-routing lag rebalance command.
Brocade(config)#ip multicast-routing lag rebalance
Syntax: [no] ip multicast-routing lag rebalance
When enabling dynamic load balancing the specific IP version must be indicated. Use ip for IPv4
traffic and ipv6 for IPv6 traffic.
Displaying LAG information
You can display LAG information for a Brocade device in either a full or brief mode.
The following example displays the brief option of the show lag command.
Syntax: show lag brief
Table 25 describes the information displayed by the show lag brief command.
The following example displays the full option of the show lag command.
Brocade# show lag brief
Total number of LAGs : 2, 100g : 2
Total number of deployed LAGs : 2, 100g : 2
Total number of trunks created : 2 (254 total available), 100g : 2 (14 total available)
LACP System Priority / ID :1 / 0024.3883.3600
LACP Long timeout :90, default: 90
LACP Short timeout :3, default: 3
LAG Type Deploy Trunk Primary Port List
100g_lag static Y 1 3/1 e 3/1
10g_lag static Y 2 2/1 e 2/1
1g_lag static Y 3 1/21 e 1/21
lag2 dynamic Y 4 3/2 e 3/2
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