HP Integrity rx2800 HP Integrity Network Adapter Teaming Whitepaper - Page 65

Scenario 4-D: A TLB Team Using Destination MAC Address Load-Balancing Method

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Table 4-11 Load balancing based on Destination MAC Address (two- and three-port teams) (continued) 011 network port 2 011 network port 1 100 network port 1 100 network port 2 101 network port 2 101 network port 3 110 network port 1 110 network port 1 111 network port 2 111 network port 2 Table 4-12 Load balancing based on Destination MAC Address (four- and five-port teams) Four-Port Team Destination MAC Transmitting Port 000 network port 1 001 network port 2 010 network port 3 011 network port 4 100 network port 1 101 network port 2 110 network port 3 111 network port 4 Five-Port Team Destination MAC Transmitting Port 000 network port 1 001 network port 2 010 network port 3 011 network port 4 100 network port 5 101 network port 1 110 network port 2 111 network port 3 Scenario 4-D: A TLB Team Using Destination MAC Address Load-Balancing Method Taking the concepts reviewed in "Scenario A-1: One Device Pings Another on the Same Layer 2 Network" in Appendix A, this section describes how TLB MAC addressed based load-balancing functions. Beginning at the point in Scenario A-1 where Blue/1.1.1.2 transmits the ping reply to Red/1.1.1.1, Blue must decide whether to use network port B or E. Blue's teaming driver calculates using the MAC address of Red (A) because Red is the frame's destination. Because a hexadecimal A is equal to 1010 in binary, and the last three bits (010) are used to determine the transmitting network port (refer to Table 4-11 - Two-port team), 010 is assigned to network port 1 (or the Primary port). Therefore, when communicating with Red, Blue will always use the Primary port to transmit frames. If Blue transmits a frame to Yellow, the same calculation must be made. Yellow's MAC address is hexadecimal F, which is equal to 1111 in binary. Blue's teaming driver will again use the last three bits to determine which network port will transmit the frame. Referring to Table 4-11, for a team with two network ports, 111 is assigned to network port 2 (or the Non-Primary port). Therefore, when communicating with Yellow, Blue will always use the Non-Primary port to transmit frames. Types of HP Integrity Network Adapter Teams 65

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Table 4-11 Load balancing based on Destination MAC Address (two- and three-port teams)
(continued)
network port 1
011
network port 2
011
network port 2
100
network port 1
100
network port 3
101
network port 2
101
network port 1
110
network port 1
110
network port 2
111
network port 2
111
Table 4-12 Load balancing based on Destination MAC Address (four- and five-port teams)
Five-Port Team
Four-Port Team
Transmitting Port
Destination MAC
Transmitting Port
Destination MAC
network port 1
000
network port 1
000
network port 2
001
network port 2
001
network port 3
010
network port 3
010
network port 4
011
network port 4
011
network port 5
100
network port 1
100
network port 1
101
network port 2
101
network port 2
110
network port 3
110
network port 3
111
network port 4
111
Scenario 4-D: A TLB Team Using Destination MAC Address Load-Balancing Method
Taking the concepts reviewed in
“Scenario A-1: One Device Pings Another on the Same Layer
2 Network”
in Appendix A, this section describes how TLB MAC addressed based load-balancing
functions.
Beginning at the point in Scenario A-1 where Blue/1.1.1.2 transmits the ping reply to Red/1.1.1.1,
Blue must decide whether to use network port B or E. Blue’s teaming driver calculates using the
MAC address of Red (A) because Red is the frame’s destination. Because a hexadecimal A is
equal to 1010 in binary, and the last three bits (010) are used to determine the transmitting network
port (refer to
Table 4-11
– Two-port team), 010 is assigned to network port 1 (or the Primary
port). Therefore, when communicating with Red, Blue will always use the Primary port to transmit
frames.
If Blue transmits a frame to Yellow, the same calculation must be made. Yellow’s MAC address
is hexadecimal F, which is equal to 1111 in binary. Blue’s teaming driver will again use the last
three bits to determine which network port will transmit the frame. Referring to
Table 4-11
, for
a team with two network ports, 111 is assigned to network port 2 (or the Non-Primary port).
Therefore, when communicating with Yellow, Blue will always use the Non-Primary port to
transmit frames.
Types of HP Integrity Network Adapter Teams
65