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Single-router Automatic Protection Switching
When you associate slots, the software pairs an odd-numbered slot with the next higher even-numbered
slot:
•
Odd-numbered slot—Holds the primary card, or working card
Even-numbered slot—Holds the secondary card, or protect card
•
Figure 14-2
Figure 14-2
Only slots 1 and 2 and slots 3 and 4 in the Cisco 10005 chassis can be used for APS redundancy because
Note
slot 5 does not have an associated higher, even-numbered slot.
This chapter describes the SR-APS feature in the following topics:
Feature History for SR-APS, page 14-29
•
Configuring SR-APS, page 14-29
•
Disabling SR-APS, page 14-29
•
Monitoring and Maintaining the SR-APS Configuration, page 14-30
•
•
Threshold Commands, page 14-31
Cisco 10000 Series Router Software Configuration Guide
14-28
shows the redundant slot pairings in the Cisco 10008 chassis.
Redundant Slot Pairings in the Cisco 10008 Series Router
Primary/
working
Primary/
working
FAN S
FAN
OK
MU LTI
-
FAI LUR
E
FAN
FAI LUR
E
CA UT ION
Wh en hot
sw app ing
rem ova
l and rep
this fan
be don
lac em ent
tray ,
e in und
sys tem
er two
mu st
shu tdo
min ute
wn wil l
s or
occ ur.
1
2
3
4
0A
CIS CO
PR O C
ES SO R
10 00 0
CIS CO
10 00 0
CIS CO
CIS CO
CIS CO
10 00 0
10 00 0
10 00 0
CIS CO
10 00 0
PO WE R
FA UL T
MI SW IR
E
PO WE R
FA UL T
MI SW IR
E
PR O C
ES SO R
Secondary/
protect
Secondary/
protect
Chapter 14
Primary/
working
Primary/
working
0B
O N LY
5
6
7
8
CIS CO
10 00 0
CIS CO
CIS CO
10 00 0
10 00 0
CIS CO
10 00 0
CIS CO
10 00 0
O N LY
Secondary/
protect
Secondary/
protect
Configuring Automatic Protection Switching
OL-2226-23
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