Tlb Does Not Provide Receive Load Balancing; Slb Does Not Provide Switch Redundancy - HP Rx2620-2 - Integrity - 0 MB RAM Manual

Figure 4-18 TLB does not provide receive load balancing
HP Network
Adapter
Team
(TLB)
1.1.1.1
HP Integrity Server
• SLB supports transmit load balancing. SLB also supports receive load balancing due to
assistance from the port trunking technology on the switch. However, SLB requires all
teamed ports be connected to the same switch (refer to
provide switch redundancy.
Figure 4-19 SLB does not provide switch redundancy
HP Network
Adapter
Team
(802.3ad
Or
SLB)
1.1.1.1
HP Integrity Server
Dual Channel and Dynamic Dual Channel were developed to address the predicament of having
to choose inbound load balancing (SLB or 802.3ad) versus switch redundancy (NFT or TLB).
74 The Mechanics of Teaming for the Advanced User
NIC 1 (A)
PRIMARY
NIC 2 (B)
SECONDARY
NIC 3 (C)
SECONDARY
NIC 4 (D)
SECONDARY
Maximum Server Bandwidth
Transmit =
Receive =
NIC 1 (A)
PRIMARY
NIC 2 (A)
SECONDARY
NIC 3 (A)
SECONDARY
NIC 4 (A)
SECONDARY
Maximum Server Bandwidth
Transmit =
Receive =
Switch
Switch
4000 Mbit
1000 Mbit
Figure
Port
Channel
Switch
4000 Mbit
4000 Mbit
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 = A
Client ARP Table:
1.1.1.1 = A
Transmit Load
Balancing
No Receive
Load Balancing
4-19). As a result, SLB doesn't
Client ARP Table
1.1.1.1 = A
Client 1
Client ARP Table
1.1.1.1 = A
Client 2
No Switch
Redundancy
Client ARP Table
1.1.1.1 = A
Client 3
Client ARP Table
1.1.1.1 = A
Client 4
Transmit Load
Balancing
Receive Load
Balancing