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Configuring load sharing – Extreme Networks Summit1 User Manual

Page 78

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4-6

S

UMMIT

S

WITCH

I

NSTALLATION

AND

U

SER

G

UIDE

C

ONFIGURING

P

ORTS

C

ONFIGURING

L

OAD

S

HARING

To set up the Summit to load share among ports, you must create a load-sharing group
of ports. Load-sharing groups are defined according to the following rules:

Ports on the switch are divided into groups of two or four.

Ports in a load-sharing group must be contiguous.

Follow the outlined boxes in Table 4-2 through Table 4-6 to determine the valid port
combinations.

The first port in the load-sharing group is configured to be the “master” logical port.
This is the reference port used in configuration commands. It can be thought of as
the logical port representing the entire port group.

Table 4-2

,

Table 4-3

,

Table 4-4

,

Table 4-5

, and

Table 4-6

show the possible load-sharing

port group combinations for the Summit1, Summit2, Summit3, Summit4 and
Summit4/FX, and Summit48, respectively.

Table 4-2: Port Combinations for the Summit1

Load-Sharing
Group

1

2

3

4

5

6

7

8

4-port groups

x

x

x

x

2-port groups

x

x

x

x

x

x

Table 4-3: Port Combinations for the Summit2

Load-Sharing
Group

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18

4-port groups

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

2-port groups

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

Table 4-4: Port Combinations for the Summit3

Load-Sharing
Group

1 2 3 4 5 6 7 8 9

1
0

1
1

1
2

1
3

1
4

1
5

1
6

1
7

1
8

1
9

2
0

2
1

2
2

2
3

2
4

2
5

4-port groups

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

2-port groups

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

Summit.bk : 4PORTS.FM Page 6 Thursday, June 18, 1998 9:27 AM