Dell PowerConnect B-RX Configuration Manual page 464

14
Ring initialization
Figure 66
FIGURE 66
Each RHP also has a sequence number. MRP can use the sequence number to determine the
round-trip time for RHPs in the ring. Refer to
392
shows an example.
Metro ring – from Preforwarding to Forwarding
PF
F
Switch C
Customer A
PF
Customer A
F
PF F
Switch B
Secondary port
receives RHP 1
and changes to
Blocking
Primary port then
sends RHP 2 with
forwarding bit on
Switch D
PF
PF
F
Customer A
"MRP phase 2" on page 397.
RHP 2
Forwarding bit is on.
Each port changes from
Preforwarding to Forwarding
when it receives this RHP.
F
F
Master
Switch A
Node
Customer A
B
BigIron RX Series Configuration Guide
53-1001810-01