Management Switch Modules (Msms) - Extreme Networks BlackDiamond 8800 Hardware Install Manual

Table 7: BlackDiamond 8000 Series Module Compatibility—8800 Series with 8500
Series
8800 Series Modules
8800-MSM48c
8800-MSM96
8800 c-Series I/O
8800 e-Series I/O

Management Switch Modules (MSMs)

The BlackDiamond 8800 Series switches support the following MSMs:
•
8500-MSM24
•
8800 Series MSMs
•
8800-MSM48c
•
8800-MSM96
•
8900-MSM128
The MSMs provide the active switching fabric and CPU control subsystem for the switch. One MSM is
required for switch operation; however, adding a second MSM to the chassis increases reliability and
throughput.
A compact flash slot allows you to insert a compact flash memory card. (See
Card on page 10 for more information about Extreme Networks-supported compact flash cards.)
Redundant MSM Activity
The BlackDiamond 8800 Series switches can run with a single MSM installed. When you install an
additional MSM, one MSM operates as the primary MSM and the other becomes the backup (secondary)
MSM. The primary MSM is responsible for upper-layer protocol processing and system management
functions. Packet handling is distributed among the CPUs of all installed MSMs.
When you save the switch configuration, it is saved to all MSMs.
Selection of the primary MSM occurs automatically. The following examples describe the selection
process:
•
When a switch boots with two MSMs installed, the MSM in the lower-numbered slot becomes the
primary MSM. In the BlackDiamond 8810 switch this is slot 5; in the BlackDiamond 8806 switch, this
is slot 3.
•
When a switch boots with a single MSM (regardless of the slot position), it is selected as the primary
MSM.
*
The S-G8Xc, S10G1Xc, and S10G2Xc port option cards are supported in the 8500-MSM24 module.
BlackDiamond 8800 Hardware Install Guide
*
8500-MSM24 8500-G24X-e
No Yes
No Yes
No Yes, unless the switch has
an 8500-MSM24 module
No
installed
BlackDiamond 8000 Series Modules
8500 Series Modules
8500-G48T-e
Yes
Yes
Yes, unless the switch has
an 8500-MSM24 module
installed
Compact Flash Memory
17