Juniper JUNOS OS 10.3 - SOFTWARE, Manual

Page: 752 / 3946

Table 122: Chassis Alarms for EX8200 Switches (continued)
The network link is disabled by
default, so you might see this
alarm before you connect the
switch to the network. Red or
Yellow Check network
connectivity. The link to the network
is down. Link Status
Related
Documentation
Checking Active Alarms with the J-Web Interface on page 652
•
•
Chassis Status LEDs in an EX8200 Switch
Monitoring Switch Control Traffic
Purpose Use the packet capture feature when you need to quickly capture and analyze switch
control traffic on a switch. The packet capture feature allows you to capture traffic
destined for or originating from the Routing Engine.
Action To use the packet capture feature in the J-Web interface, select
Troubleshoot>Packet
Capture
.
To use the packet capture feature in the CLI, enter the following CLI command:
monitor traffic
Meaning You can use the packet capture feature to compose expressions with various matching
criteria to specify the packets that you want to capture. You can decode and view the
captured packets in the J-Web interface as they are captured. The packet capture feature
does not capture transient traffic.
Table 123: Packet Capture Field Summary
Your Action Function Field
From the list, select an interface—for
example,
ge-0/0/0
.
Specifies the interface on which the packets are captured.
If you select default, packets on the Ethernet management
port 0, are captured. Interface
From the list, select Detail . Specifies the extent of details to be displayed for the
packet headers.
• Brief—Displays the minimum packet header information.
This is the default.
• Detail—Displays packet header information in moderate
detail.
• Extensive—Displays the maximum packet header
information.
Detail level
From the list, select the number of packets
to be captured—for example, 10. Specifies the number of packets to be captured. Values
range from
1
to
1000
. Default is
10
. Packet capture stops
capturing packets after this number is reached.
Packets
Copyright © 2010, Juniper Networks, Inc. 656
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3