Juniper EX9200 Features Manual page 22

Port Mirroring Analyzers Feature Guide for EX9200 Switches
Table 4: Configuration Guidelines for Port Mirroring Analyzers (continued)
Guideline
Types of ports on which you cannot mirror
traffic.
Protocol families that you can include in an
analyzer.
Packets with physical layer errors are not
sent to the local or remote analyzer.
Analyzer does not support line-rate traffic.
Analyzer output on a LAG interface.
Analyzer output interface mode as trunk
mode.
Egress mirroring of host-generated control
packets.
Configuring Layer 3 logical interfaces in the
stanza of an analyzer.
input
The analyzer input and output stanzas
containing members of the same VLAN or
the VLAN itself must be avoided.
Support for VLAN and its member
interfaces in different analyzer sessions
8
Value or Support
Information
Virtual Chassis ports
(VCPs)
Management Ethernet
ports (me0 or vme0)
Integrated routing and
bridging (IRB) interfaces
VLAN-tagged Layer 3
interfaces
for EX
ethernet-switching
Series switches and bridge
for MX Series routers.
Applicable
Applicable
Supported
Supported
Not supported
Not supported
Applicable
Not supported
Comment
Analyzer mirrors only bridged traffic. For mirroring
routed traffic, use the port mirroring configuration
with as or .
family inet inet6
Packets with these errors are filtered out and thus
are not sent to the analyzer.
Mirroring for line-rate traffic is done on a
best-effort basis.
The trunk interface has to be a member of all
VLANs or bridge domains that are related to the
input configuration of analyzer.
You must use the
mirror-once
has been configured as VLAN or bridge domain
and the output is a trunk interface.
NOTE: With the mirror-once option, if the input
is for both ingress and egress mirroring, only
ingress traffic is mirrored. If both ingress and
egress mirroring are required, the output
interface cannot be a trunk. In such cases,
configure the interface as an access interface.
If mirroring is configured, either of the analyzers is
active.
Copyright © 2016, Juniper Networks, Inc.
option if the input