Port; Vrrp Environment - HP ProCurve 6600 Switch Series Technical Overview

However, when more than two ports per 4-port 10-GbE block are in a linked state, ports 1 and 4 are statically
mapped to share one 14 .4-Gbps channel, while ports 2 and 3 are statically mapped to share the other
14 .4-Gbps channel . Thus, if only one port in a given channel is in a linked state, then that port operates at
wire speed and the other port uses no bandwidth . However, if both ports in a given channel are in a linked
state, then the 14 .4 Gbps of bandwidth is balanced fairly between the two ports .
For example, in an application where three 10-GbE ports are needed and the user needs to ensure that port 1
always has a full 10 Gbps available, then port assignments shown in Figure 20 should be used to ensure that
port 1 can operate at wire speed .
F2 Chip Fabric Modules
Port 1 can provide 10 Gbps
because it does not need to share
the channel with port 4
Figure 20: Approach for providing 10 Gbps on a specific port
Connection choices are also important where equally balanced bandwidth is needed, such as in a VRRP
application . This scenario is illustrated in Figure 21 .
• Each trunk can provide 20-Gbps bandwidth because in the VRRP scenario, one router is
the owner and the other is the backup
• As a result, only one port in each 14.4-Gbps channel is in use since the trunks are using
different channels
F2 Chip
14.4-Gbps
channel
1
Figure 21: Providing equally balanced bandwidth in a VRRP environment
14.4-Gbps 14.4-Gbps
14.4 Gbps 14.4 Gbps
channel channel
Cha nnel Channel
1 4 2 3 3
1 2
4
.......................................
10-GbE ports
Ports 2 and 3 share this channel and the
trunked link balanced the 14.4-Gbps link
fairly between the 2 ports
8200zl switch
VRRP "Master"
14.4-Gbps
channel
3
2
4
6600 switch
6600-24G switch
21 24
"Backup"
F2 Chip
14.4-Gbps 14.4-Gbps
channel channel
3
1 2
4
14.4-Gbps 14.4-Gbps
14.4 Gbps 14.4 Gbps
channel channel
Channel Channel
22
3
1
4
10-GbE ports
8200zl switch
35