ProCurve 3500yl Series, Руководство по управлению и настройке, Страница: 556 / 732

B-26
Monitoring and Analyzing Switch Operation
Traffic Mirroring
Traffic Mirroring
Mirror Features
Beginning with software release K.12. xx , traffic mirroring (Intelligent Mirror-
ing) enables copying of network traffic from a network interface to a local or
remote exit port where a host such as a traffic analyzer or intrusion detection
system (IDS) is connected. This feature enables inspection of the traffic
flowing on specific interfaces and can help in analyzing and debugging prob-
lems resulting from a misbehaving network or an individual client. This
operation makes it easier to diagnose a network problem from a centralized
location in a topology spread across a campus.
N o t e
Using the CLI, you can make full use of the switch’s local and remote mirroring
capabilities. Using the Menu interface, you can configure only local mirroring
for either a single VLAN or a list composed of ports and/or static trunks.
Mirrored frames exceeding the allowed maximum transmission unit (MTU)
size will be dropped. Also, the switch applies a 54-byte IPv4 header to mirrored
frames. For more on these topics, including the jumbo and non-jumbo frame
size limits, refer to “Maximum Supported Frame Size” on page B-73.
Intelligent Mirroring supports destinations on the local (source) switch and
one or more remote switches, allowing traffic from a given mirroring session
on a source switch to be sent to either a host on the same switch or bridged
or routed to a host on another switch previously configured as the destination
for that session.
■ A switch can be configured as the destination for:
• 32 remote mirroring sessions originating on other ProCurve switches
running software release K.12.
xx . This allows simultaneous mirroring
sessions configured on multiple source switches to be directed to one
or more exit ports on a given exit switch previously configured to
support those sessions.
Feature Default Menu CLI
Mirror CLI Quick Reference n/a n/a B-40, B-41
Configure Mirror Source disabled page B-33 page B-44
Configure Mirror Destination at Source disabled page B-33 page B-46
Configure Remote Mirroring at Destination disabled n/a page B-44
Display Mirror Configuration n/a page B-33 page B-61
3500-5400-6200-8200-MCG-Jan08-K_13_01.book Page 26 Monday, January 28, 2008 10:04 AM