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JunosE 11.3.0 Release Notes
Subscriber Interfaces
System
38
Known Behavior
For OSPF, use the ip ospf dead-interval command to set the hold time. We
recommend that you use Bidirectional Forwarding Detection (BFD) with a longer
OSPF dead interval to achieve fast failure detection.
For IS-IS, use the isis hello-interval and isis hello-multiplier commands to set
the hold time.
We recommend the following hold times for each protocol, based on the number of
interfaces.
Recommended Hold Time
Interface Count
for OSPF
16000 or less
80 seconds
16001 to 32000
87 seconds
32001 to 48000
90 seconds
MAC address validation is not supported on either of the following:
Packet-triggered subscriber interfaces that are created dynamically
Packet-triggered subscriber interfaces that are managed on the primary IP
interface
A packet-triggered subscriber interface is created when the router receives a packet
with an IP source address that does not match any entries in the demultiplexer table.
When the router detects an unmatched packet, it generates a trigger event that
determines whether to create a dynamic subscriber interface or configure an existing
interface. To configure packet detection on the router, use the ip auto-detect
ip-subscriber command.
In a router with a redundancy group that does not span quadrants (for example, a
three-slot redundancy group that spans slots 0, 1, and 2 in an ERX1410 chassis), the
potential bandwidth of the redundant module is erroneously included in the
quadrant bandwidth calculation. The show utilization command might indicate that
the bandwidth is exceeded for modules in that group. [Defect ID 31034]
When you copy the running configuration to NVS, the E Series router verifies whether
it has available space equal to at least twice the size of the .cnf file. If the space is
insufficient, you cannot complete the copy. [Defect ID 40655]
Work-around: Make sufficient space on the NVS by deleting .rel or .cnf files.
You cannot delete the ipInterface log after you delete the corresponding IP interface.
This does not prevent you from adding filters to other interfaces, nor does it prevent
you from adding a filter to the same interface if you re-create it after deletion. [Defect
ID 34842/45063]
Work-around: Remove the filter before you remove the interface. Alternatively, if you
remove the interface first, then you must remove all filters associated with all IP
interfaces.
Recommended Hold Time
for IS-IS
50 seconds
55 seconds
70 seconds
Copyright © 2010, Juniper Networks, Inc.
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