![background image](http://html.mh-extra.com/html/hp/procurve-6120g-xg/procurve-6120g-xg_configuration-manual_164578574.webp)
Troubleshooting
Diagnostic Tools
Port Auto-Negotiation
When a link LED does not light (indicating loss of link between two devices),
the most common reason is a failure of port auto-negotiation between the
connecting ports. If a link LED fails to light when you connect the switch to a
port on another device, do the following:
1. Ensure that the switch port and the port on the attached end-node are
both set to
Auto
mode.
2. If the attached end-node does not have an
Auto
mode setting, then you
must manually configure the switch port to the same setting as the end-
node port. Refer to Chapter 10, “Port Status and Configuration”.
Ping and Link Tests
The Ping test and the Link test are point-to-point tests between your switch
and another IEEE 802.3-compliant device on your network. These tests can
tell you whether the switch is communicating properly with another device.
N o t e
To respond to a Ping test or a Link test, the device you are trying to reach must
be IEEE 802.3-compliant.
Ping Test.
This is a test of the path between the switch and another device
on the same or another IP network that can respond to IP packets (ICMP Echo
Requests). To use the
ping
(or
traceroute
) command with host names or fully
qualified domain names, refer to “DNS Resolver” on page C-78.
Link Test.
This is a test of the connection between the switch and a desig
nated network device on the same LAN (or VLAN, if configured). During the
link test, IEEE 802.2 test packets are sent to the designated network device
in the same VLAN or broadcast domain. The remote device must be able to
respond with an 802.2 Test Response Packet.
C-56
Содержание ProCurve 6120G/XG
Страница 1: ...ProCurve Series 6120 Switches Management and Configuration Guide November 2010 Version Z 14 22 ...
Страница 2: ......
Страница 3: ...HP ProCurve 6120G XG Switch 6120XG Switch November 2010 Z 14 22 Management and Configuration Guide ...
Страница 24: ...xxii ...
Страница 40: ...Getting Started To Set Up and Install the Switch in Your Network 1 10 ...
Страница 54: ...Selecting a Management Interface Advantages of Using ProCurve Manager or ProCurve Manager Plus 2 14 ...
Страница 70: ...Using the Menu Interface Where To Go From Here 3 16 ...
Страница 92: ...Using the ProCurve Web Browser Interface Contents Setting Fault Detection Policy 5 25 5 2 ...
Страница 160: ...Switch Memory and Configuration Automatic Configuration Update with DHCP Option 66 6 44 ...
Страница 288: ...Port Status and Configuration Uplink Failure Detection 10 42 ...
Страница 318: ...Port Trunking Outbound Traffic Distribution Across Trunked Links 11 30 ...
Страница 470: ...File Transfers Copying Diagnostic Data to a Remote Host USB Device PC or UNIX Workstation A 34 ...
Страница 487: ...Monitoring and Analyzing Switch Operation Status and Counters Data B 17 ...
Страница 518: ...Monitoring and Analyzing Switch Operation Traffic Mirroring B 48 ...
Страница 612: ...MAC Address Management Viewing the MAC Addresses of Connected Devices D 8 ...
Страница 616: ...Monitoring Resources When Insufficient Resources Are Available E 4 ...
Страница 620: ...Daylight Savings Time on ProCurve Switches F 4 ...
Страница 638: ...Network Out of Band Management OOBM Tasks G 18 ...
Страница 659: ...download to primary or secondary flash A 21 using to download switch software A 19 Index 19 ...
Страница 660: ...20 Index ...
Страница 661: ......