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Resolved Known Problems
CLI
Forwarding
IGMP
Copyright © 2010, Juniper Networks, Inc.
Release 11.3.0 is based on Release 11.2.0 and incorporates all problem resolutions found
in that release. The following problems were reported open in Release 11.2.0 and have
been resolved in this release, or have been resolved since the 11.2.0 release. For more
information about particular resolved problems, you can log in to the JunosE
Knowledge Base at https://www2.juniper.net/kb/, enter the defect ID number in the
Search by Keyword field, and click Search.
When you shut down a port, the value of the optical power associated with that port
falls below the threshold value. When the value of the optical power falls below the
threshold value, the status of the optical warning flag changes to the active state.
The IOA driver polls all the optical warning flags every 20 seconds, and if an optical
warning flag is active, traps and logs are generated for the respective port until the
value of the optical power is restored to normal.
For instance, when two ports are connected back to back in a line module, when you
shut one port, the trap is triggered on both ports as optical power falls below the
threshold value on both these ports (Tx on the shut port and Rx on the remote port).
Traps and logs are also generated when you:
Remove a cable
Cut a cable
Insert an SFP and do not connect a cable to it. [Defect ID 187248]
The DoS protection egress rate is not accurate for the ES2 10G LM or the ES2 10G
Uplink LM. [Defect ID 86925]
In a router with an ES2 10G ADV LM and ES2-S2 10GE IOA combination and the line
module contains a shared tunnel-server port as well as GRE tunnels configured with
secure policies for mirroring traffic, multicast group memberships that had been
previously established over IGMP interfaces on the router are lost after you perform a
stateful SRP switchover on a chassis running JunosE Software Release 11.2.0. [Defect
ID 186844]
This problem happens only when both multicast data packets and IGMP packets are
transmitted on the network, regardless of whether you perform a stateful SRP
switchover. This problem does not occur when only IGMP packets, without multicast
data streams, are sent over the network.
In such a scenario, IGMPv2 is enabled on the interfaces using the ip igmp
promiscuous command to accept IGMP reports from hosts on any subnet. Although
the hosts send new join requests to the router, the router does not send group
membership queries to such hosts to enable the creation of fresh memberships.
Creation of new memberships fails because the router drops the received group
membership reports from hosts. Any subsequent attempt from a host to join the
multicast group on the router that has the ES2 10G ADV LM fails. However, after you
reload the ES2 10G ADV LM, join requests from hosts succeed and such hosts
become members of the multicast group.
Release 11.3.0
Resolved Known Problems
55
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