Dell Brocade DCX, Configuration Manual

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BigIron RX Series Configuration Guide 403
53-1001810-01
Ring initialization for shared interfaces
14
The packet then continues around Ring 1, through the interfaces on S1 to Ring 2 until it reaches
Ring 2’s master node. Port 3/2, the secondary interface on Ring 2 changes to blocking mode since
it received its own packet, then blocks the packet to prevent a loop.
FIGURE 73 Flow of RHP packets when a link for shared interfaces brakes
RHP packets follow this flow until the link is restored; then the RHP packet returns to it normal flow
as shown in
Figure 73 .
NOTE
There should always be a layer 2 protocol configured in the default VLAN when MRP is configured
with all dual mode ports.
Configuring MRP with shared interfaces
MRP Phase 2 allows you to enter commands such as the following when configuring MRP.
BigIron RX(config)# vlan 2
BigIron RX(config-vlan-2)# metro-ring 1
BigIron RX(config-vlan-2-mrp-1)# name CustomerA
BigIron RX(config-vlan-2-mrp-1)# ring-interface ethernet 1/1 ethernet 1/2
BigIron RX(config-vlan-2-mrp-1)# enable
BigIron RX(config-vlan-2-mrp-1)# metro-ring 2
BigIron RX(config-vlan-2-mrp-2)# name CustomerB
BigIron RX(config-vlan-2-mrp-2)# ring-interface ethernet 1/1 ethernet 1/2
BigIron RX(config-vlan-2-mrp-1)# enable
Syntax: [no] metro-ring <ring-id>
The <ring-id> parameter specifies the ring ID, which can be from 1 – 255. Configure the same ring
ID on each of the nodes in the ring.
Syntax: [no] name <string>
X
Ring 1
Ring 2
S3
S4
S1
S2
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
1,2
1,2
Master node
port2/2 changes
to preforwarding
(primary interface) port2/1
Master node
port3/2
port3/1 (primary interface)
= Ring 2 RHP packet
T
T