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Guidelines for Activating High Availability
Copyright © 2010, Juniper Networks, Inc.
Table 8: Application Support for Stateful SRP Switchover (continued)
Application
Supported
J-Flow (IP flow
statistics)
Line Module
Redundancy
Network Address
Translation
NTP
Resource
Threshold Monitor
Response Time
Reporter
Route Policy
Subscriber
Interfaces
Tunnels (GRE and
DVMRP)
VRRP
CAUTION: When IP tunnels are configured on an HA-enabled router and the
Service Module (SM) carrying these tunnels is reloaded, HA transitions to
the pending state. HA remains in the pending state for 5 minutes after the
successful reloading of the SM. This amount of time allows for IP tunnel
relocation and for the tunnels to become operational again on the SM. If an
SRP switchover occurs while HA is in the pending state, the router performs
a cold restart.
Monitoring the Redundancy Status of Applications on page 59
show redundancy clients
Before you activate high availability on the SRP modules, you must be aware of any high
availability–related changes to SRP management commands. For information on high
availability-related changes to SRP, see "Managing Stateful SRP Switchover" on page 35.
Chapter 3: Managing Stateful SRP Switchover
Unsupported
Notes
–
–
–
–
–
–
–
–
–
–
–
–
–
Static recovery support only.
–
IPv4 only. Subscriber interfaces are not
applicable to IPv6.
–
–
–
Static recovery support only.
51
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