FUJITSU PG-FCS102 - Manual (Page 41)

4 Broadcom Gigabit Ethernet Teaming Services
141
E
Furthermore, a failover event would cause additional loss of connectivity. Consider a cable
disconnect on the Top Switch port 4. In this case, Gray would send the ICMP Request to Red 49:C9,
but because the Bottom switch has no entry for 49:C9 in its CAM Table, the frame is flooded to all its
ports but cannot find a way to get to 49:C9.
• Teaming Across Switches Without an Interswitch Link
The addition of a link between the switches allows traffic from/to Blue and Gray to reach each other
without any problems. Note the additional entries in the CAM table for both switches. The link
interconnect is critical for the proper operation of the team. As a result, it is highly advisable to have
a link aggregation trunk to interconnect the two switches to ensure high availability for the
connection.
W2K
Blue
SLB Team
192.168.1.101
W2K3
Gray
SLB Team
192.168.1.102
W2K
Red
SLB Team
192.168.1.100
ARP Table:
.100=49:C9
.101=82:82 ARP Table:
.100=49:C9
.102=5E:CA
Can not ping
ARP Table:
.101=82:82
.102=5E:CA
STOP
82:83 5E:CA (P) 5E:C9 82:82 (P)
49:C8 49:C9 (P)
Bottom Switch
CAM Table:
Eth 1: 82:82
Eth 2: 49:C8
Eth 4: 5E:CA
Top Switch
CAM Table:
Eth 1: 82:83
Eth 2: 49:C9
Eth 4: 5E:C9
1 1 4 4
2
2