Preconfigured Redundancy (Pxm And Srm) - Cisco MGX MGX 8800 Hardware Installation Manual
Cisco systems switches installation guide
Hide thumbs
Also See for Cisco MGX MGX 8800:
- Hardware installation manual (25 pages) ,
- User manual (4 pages)
Table of Contents
Advertisement
Planning Standalone and Redundant Card Configurations
Preconfigured Redundancy (PXM and SRM)
Cisco MGX 8850switches are preconfigured to support redundant PXM and SRM cards. If you want to
use redundant PXM and SRM cards, simply install cards in the appropriate slot as described in
Table 4-3
Switches
MGX 8830 and MGX 8830/B
MGX 8850 (PXM1E/PXM45), MGX
8850/B and MGX 8880
MGX 8950
SRM cards are optional and add 1:N card redundancy, bulk distribution, and bit error rate testing (BERT)
services to a Cisco MGX 8850switch. These services apply to select service modules, so in a MGX 8850
(PXM45) or MGX 8850/B switch, for example, you might use 1:1 card redundancy for some cards and
1:N redundancy for others.
When you install SRM cards, it is important to note the relationship between the SRM cards and the
PXM cards, which is shown in
preconfigured card set is a PXM in slot 7, an SRM covering the upper bay in slot 15, and an SRM
covering the lower bay in slot 31. The secondary configuration is a PXM in slot 8, an SRM covering the
upper bay in slot 16, and an SRM covering the lower bay in slot 32. If the primary card set fails, a
switchover to the secondary card set is initiated.
PXM and SRM cards in the switches that support SRM cards.
Figure 4-1
1
17
Cisco MGX 8800/8900 Series Hardware Installation Guide
4-6
Preconfigured Redundancy for Cisco MGX 8850Switches
Table
MGX 8850 Switch or MGX 8880 Media Gateway with Redundant PXMs and SRMs
2
3
4
5
6
7
P
X
M
1
E
or
18
19
20
21
22
P
X
M
4
5
Chapter 4
Planning for Card Redundancy, Line Redundancy, and Bulk Distribution
Redundancy
Role
Primary
Secondary
Primary
Secondary
Primary
Secondary
4-3. For example, in a MGX 8850 (PXM1E) switch, the primary
Figure 4-1
8
9
10
11
12
13
14
P
X
M
1
E
or
25
26
27
28
29
30
P
X
M
4
5
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Upper Bay
PXM Slot
SRM Slot
1
7
2
14
7
15
8
16
7
—
8
—
and
Figure 4-2
show the card positions for
15
16
S
S
R
R
M
M
31
32
S
S
R
R
M
M
Table
4-3.
Lower Bay
SRM Slot
—
—
31
32
—
—
Advertisement
Table of Contents
