Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 440)

vLAG configuration overview
Network OS 4.0 and later supports the option of setting the "Allowed Speed" of the port-channel to
either 1 Gbps or 10 Gbps. The default is 10 Gbps. If the port-channel is 1 Gbps, then the speed needs
to be configured before the port-channel is enabled. Otherwise, the physical links are throttled down
because of a speed mismatch. Refer to the Network OS Command Reference for information on the
speed command.
The following conditions and requirements should be kept in mind when configuring vLAGs:
• FCoE and DCB capabilities are not supported by vLAG. FCoE traffic is treated similarly to normal
LAN data traffic.
• Static vLAGs are not supported on internal ports.
• Perform this procedure on all member nodes of a vLAG.
Configuring vLAGs
To configure a vLAG, perform the following steps:
1. Change to global configuration mode.
2. Configure a LAG between two switches within the Brocade VCS Fabric.
Refer to LAG distribution process and conditions on page 438 for more information. Once the
Brocade VCS Fabric detects that the LAG configuration spans multiple switches, the LAG
automatically becomes a vLAG.
3. Enter interface port-channel ID on every switch in the vLAG to configure them to treat FCoE MAC
addresses as being multi-homed hosts, similar to LAN traffic.
The default configuration is to treat FCoE traffic as non-vLAG traffic.
switch(config)# interface port-channel 10
4. Enter end to return to privileged EXEC mode.
switch(config-Port-channel-10)# end
switch#
5. Enter show port-channel detail to verify the port-channel details.
switch# show port-channel detail
LACP Aggregator: Po 27
Aggregator type: Standard
Ignore-split is disabled
Actor System ID - 0x8000,00-05-33-6f-18-18
Admin Key: 0027 - Oper Key 0027
Receive link count: 4 - Transmit link count: 4
Individual: 0 - Ready: 1
Partner System ID - 0x8000,00-05-1e-cd-6e-9f
Partner Oper Key 0027
Member ports on rbridge-id 231:
Link: Te 231/0/22 (0xE718160201) sync: 1 *
Link: Te 231/0/23 (0xE718170202) sync: 1
Link: Te 231/0/36 (0xE718240305) sync: 1
Link: Te 231/0/37 (0xE718250306) sync: 1
6. Enter show portport-channel to verify the port-channel interface details.
switch# show port port-channel tengigabitethernet 1/0/21
LACP link info: te0/21 -0x18150014
Actor System ID: 0x8000,01-e0-52-00-01-00
Actor System ID Mapped Id: 0
Partner System ID: 0x0001,01-80-c2-00-00-01
Actor priority: 0x8000 (32768)
Admin key: 0x000a (10) Operkey: 0x0000 (0)
Receive machine state : Current
Periodic Transmission machine state : Slow periodic
Muxmachine state : Collecting/Distr
Admin state: ACT:1 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
Operstate: ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
Partner operstate: ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
Partner oper port: 100
vLAG configuration overview
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