Owner's Manual

144 | Chapter 5. Configuring Slots and Ports on a Switch
NETGEAR 8800 User Manual
Guidelines
The following are guidelines for remote mirroring:
• Configurations of remote mirroring, which might cause protocol packets to be remotely
mirrored, are not recommended. Since all packet types are mirrored when you configure
remote mirroring, remotely mirrored protocol packets may have undesirable affects on
intermediate and destination switches.
• In the NETGEAR 8800 series switches, remote mirroring can be enabled only when the
enhanced mode is enabled for mirroring.
Use of Remote Mirroring with Redundancy Protocols
You can use remote mirroring with one-to-many mirroring to provide a redundant path from
the source switch to the destination switch. Using Spanning Tree can provide remote
mirroring packets a redundant loop-free path through the network. You should perform the
configuration of Spanning Tree before adding mirroring filters on the source switch to prevent
looping.
Remote Mirroring with STP
In Figure 3, the traffic from switch A is mirrored to the two ports 8:2 and 1:48 to connect to
the destination switch. Using the configuration shown in Figure 3, remote mirrored packets
have a loop-free redundant path through the network using STP.
Figure 3. Remote Mirroring with STP
The configuration for the topology in Figure 3 is given in the following sections.
Switch A Configuration
configure mirroring mode enhanced
enable mirroring to port-list 8:2,1:48 loopback-port 8:1 remote-tag 1000
configure mirroring add port 8:35
create vlan v1
configure vlan v1 tag 1001
configure vlan v1 add ports 8:2,1:48 tag
create stp stp1