HP Integrity rx2800 HP Integrity Network Adapter Teaming Whitepaper - Page 75

Switch Redundancy, Receive Load, Balancing, Transmit Load, Fault Tolerance

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With Dual Channel, a server can have full transmit and receive load balancing with switch redundancy (refer to Figure 4-20). Figure 4-20 Dual Channel & Dynamic Dual Channel provide full load balancing and switch redundancy Switch NIC 1 (A) HP Network PRIMARY Adapter Team NIC 2 (A) SECONDARY (Dual Channel) 1.1.1.1 NIC 3 (B) SECONDARY NIC 4 (B) SECONDARY HP Integrity Server Port Channel Client 1 Port Channel Switch Client 2 Client 3 Maximum Server Bandwidth Transmit = 4000 Mbit Receive = 4000 Mbit Client 4 Client ARP Table: 1.1.1.1 = A Client ARP Table: 1.1.1.1 = A Switch Redundancy Client ARP Table: 1.1.1.1 = B Client ARP Table: 1.1.1.1 = B Transmit Load Balancing Receive Load Balancing Table 4-15 Dual Channel/Dynamic Dual Channel capabilities comparison to other team types NFT TLB Dual Channel Dynamic Dual Channel SLB 802.3ad Fault Tolerance √ √ Transmit Load Balancing √ √ √ √ √ Receive Load Balancing √ √ Switch Redundancy √ √ Dual Channel works by dividing the teamed ports into two groups - Group A and Group B. Each group functions much like an individual team. Because of this, Dual Channel is sometimes described as a team of teams because it is a team comprising two team-like entities called Group A and Group B. The teamed ports within each group behave exactly like an SLB team. This means that all teamed ports within a particular group must be connected to the same switch. Also, if there is more than one teamed port in the same group, the switch must be configured for Port Trunking (just like SLB). Within each group, any teamed port can fail and the group is still functional (just like SLB). If all of the teamed ports in a group fail, the team is still available via the other group. Since the IP address is "owned" by the team instead of either group (A or B), the server maintains network connectivity (with the same IP address) as long as at least one teamed port in at least one group is functional. Types of HP Integrity Network Adapter Teams 75

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With Dual Channel, a server can have full transmit and receive load balancing with switch
redundancy (refer to
Figure 4-20
).
Figure 4-20 Dual Channel & Dynamic Dual Channel provide full load balancing and switch
redundancy
Client 1
NIC 1 (A)
PRIMARY
NIC 2 (A)
Port
Channel
Port
Channel
NIC 3 (B)
NIC 4 (B)
HP Network
Adapter
Team
(Dual
Channel)
1.1.1.1
HP Integrity Server
Switch
Switch
Client ARP Table:
1.1.1.1 = A
Client 2
Client ARP Table:
1.1.1.1 = A
Client 3
Client 4
Switch
Redundancy
Transmit Load
Balancing
Receive Load
Balancing
Maximum Server Bandwidth
Transmit =
Receive =
4000 Mbit
4000 Mbit
Client ARP Table:
1.1.1.1 = B
Client ARP Table:
1.1.1.1 = B
SECONDARY
SECONDARY
SECONDARY
Table 4-15 Dual Channel/Dynamic Dual Channel capabilities comparison to other team types
Switch Redundancy
Receive Load
Balancing
Transmit Load
Balancing
Fault Tolerance
√
√
NFT
√
√
√
TLB
√
√
√
√
Dual Channel
√
√
√
√
Dynamic Dual
Channel
√
√
√
SLB
√
√
√
802.3ad
Dual Channel works by dividing the teamed ports into two groups – Group A and Group B.
Each group functions much like an individual team. Because of this, Dual Channel is sometimes
described as a team of teams because it is a team comprising two team-like entities called Group
A and Group B. The teamed ports within each group behave exactly like an SLB team. This means
that all teamed ports within a particular group must be connected to the same switch. Also, if
there is more than one teamed port in the same group, the switch must be configured for Port
Trunking (just like SLB). Within each group, any teamed port can fail and the group is still
functional (just like SLB). If all of the teamed ports in a group fail, the team is still available via
the other group. Since the IP address is “owned” by the team instead of either group (A or B),
the server maintains network connectivity (with the same IP address) as long as at least one
teamed port in at least one group is functional.
Types of HP Integrity Network Adapter Teams
75