Table of Contents
Advertisement
Cisco 6260 System Overview
•
•
•
During steady-state operations, one NI-2 card functions as the active unit, and the other functions as the
standby unit. The active NI-2 card displays a green ACTIVE LED. In an active state, the NI-2 card
•
•
•
•
•
The standby NI-2 card plays a minimal role during steady-state operations. In a standby state, the
NI-2 card
•
•
•
•
•
For management purposes, the primary and secondary NI-2 cards appear as one element. The cards share
one IP address.
For information on NI-2 card cold redundancy switchover conditions, refer to the Upgrading DSLAMs
Note
for NI-2 Card and APS Link Redundancy document.
1.2.3.13.2 APS Link Redundancy
APS link redundancy provides recovery from a cut fiber or the failure of an OC-3c optical TX or optical
RX interface on an NI-2 card. APS link redundancy is available on OC-3c/OC-3c NI-2 card network
trunk and subtend interfaces.
APS link redundancy is nonrevertive. After a switchover from the primary to the secondary fiber occurs,
the active NI-2 card switches back to the primary fiber only if it is manually forced through a
command-line interface (CLI) or if a failure condition occurs on the secondary fiber. However, if a
failure condition occurs on the secondary fiber while the primary fiber is still in a failed state, a switch
back to the primary fiber does not occur.
The OC-3c ports on the standby NI-2 card are available for APS link redundancy only if the standby NI-2
Note
card is working and in a STANDBY-READY state.
For more information on APS link redundancy, refer to the Upgrading DSLAMs for NI-2 Card and APS
Link Redundancy document.
Cisco 6260 Hardware Installation Guide
1-40
DS3/2DS3
DS3+T1/E1 IMA
OC-3c/OC-3c (SMF and MMF)
Has full Ethernet, auxiliary port, and console access
Communicates with line cards
Has full access to the environmental monitoring subsystem
Has access to the optical interfaces on the standby NI-2 card
Allows remote access to the file system of the standby NI-2 card
Receives configuration changes from the active NI-2 card (when the cards are configured
for synchronization)
Has no Ethernet, auxiliary port, or console access
Does not communicate with line cards
Has no access to the environmental monitoring subsystem
Generates only APS alarms, which are reported via the active card
Chapter 1
Product Overview
OL-2365-02
Advertisement
Table of Contents
