HP Integrity BL890c - i2 Server White Paper

Figure 4-21 Overview of Dual Channel communication
HP Integrity Server
Destination MAC/Source MAC/Destination IP/Source IP
Switch 2Switch 1
E A 1.1.1.1 1.1.1.2
Destination MAC/Source MAC/Destination IP/Source IP
F C 1.1.1.1 1.1.1.4
Destination MAC/Source MAC/Destination IP/Source IP
C F 1.1.1.4 1.1.1.1
Destination MAC/Source MAC/Destination IP/Source IP
F D 1.1.1.1 1.1.1.5
Destination MAC/Source MAC/Destination IP/Source IP
D F 1.1.1.5 1.1.1.1
Destination MAC/Source MAC/Destination IP/Source IP
E B 1.1.1.1 1.1.1.3
Destination MAC/Source MAC/Destination IP/Source IP
B E 1.1.1.3 1.1.1.1
Destination MAC/Source MAC/Destination IP/Source IP
ARP Table:
1.1.1.1 = E
1.1.1.3 = B
1.1.1.4 = C
1.1.1.5 = D
ARP Table:
1.1.1.1 = E
1.1.1.2 = A
1.1.1.4 = C
1.1.1.5 = D
ARP Table:
1.1.1.2 = A
1.1.1.3 = B
1.1.1.4 = C
1.1.1.5 = D
A E 1.1.1.2 1.1.1.1
TCP/IP NDIS 5
CPQTEAM.SYS Dual Channel Team IP Address = 1.1.1.1
N100NT5.SYS
MAC = E
N100NT5.SYS
MAC = E
Group A
N100NT5.SYS
MAC = F
N100NT5.SYS
MAC = F
Group B
Client A
IP Address = 1.1.1.2
MAC = A
Client B
IP Address = 1.1.1.3
MAC = B
ARP Table:
1.1.1.1 = F
1.1.1.2 = A
1.1.1.3 = B
1.1.1.5 = D
ARP Table:
1.1.1.1 = F
1.1.1.2 = A
1.1.1.3 = B
1.1.1.4 = C
Client C
IP Address = 1.1.1.4
MAC = C
Client D
IP Address = 1.1.1.5
MAC = D
Dual Channel Configuration
Dual Channel configuration is more complicated than other team types because of the need to
separate teamed ports into two groups. To create a Dual Channel team, select at least two network
ports on the main NCU page and click the Team icon. Next, select Switch-assisted Dual Channel
Load Balancing from the Team Type Selection drop-down box on the Teaming Controls tab.
Refer to Figure 4-22.
After Dual Channel is selected as the team type, the Team Membership section of the tab will
change to show the Group configuration. At least one teamed port must be assigned to each
group. To move teamed ports between groups, highlight the teamed port and click the up or
down arrow on the right hand side of the Team Membership panel.
A group in Dual Channel ONLY requires one teamed port. If only a single teamed port is put in
a group, the switch does not need to be configured for Port Trunking. However, if a group has
two or more teamed ports, the switch MUST be configured for Port Trunking (like SLB). Also,
groups do not have to have the same number of teamed ports. For instance, Group A could have
two teamed ports and Group B could have four teamed ports. Or Group A could have one teamed
port and Group B could have five teamed ports. However, HP recommends that whenever a
Dual Channel team is created with an even number of teamed ports, the ports should be evenly
distributed between both groups. Since both Group A and Group B are used for receiving traffic,
having an even amount of ports in each group ensures the maximum amount of receive
throughput for the team.
The minimal configuration for Dual Channel requires two teamed ports; one port in Group A
and one port in Group B. Port Trunking doesn’t need to be configured on the switch for either
Group. This configuration provides the flexibility of a TLB team with the throughput of an SLB
team.
76 The Mechanics of Teaming for the Advanced User

HP Integrity BL890c - i2 Server Specifications

General

Brand	HP
Model	Integrity BL890c - i2 Server
Category	Server
Language	English