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Description
Use the
virtual-cable-test
command to enable the system to test the cable connected to a specific port
and to display the results. The system can test these attributes of the cable:
z
Cable status, including normal, abnormal, abnormal-open, abnormal-short and failure
z
Cable length
z
If the cable is in normal state, the displayed length value is the total length of the cable.
z
If the cable is in any other state, the displayed length value is the length from the port to the faulty
point.
z
Pair impedance mismatch
z
Pair skew
z
Pair swap
z
Pair polarity
z
Insertion loss
z
Return loss
z
Near-end crosstalk
By default, the system does not test the cable connected to the Ethernet port.
Currently, only cable status and cable length can be tested. A hyphen (-) indicates that the
corresponding test item is not supported.
Examples
# Enable the system to test the cable connected to Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] virtual-cable-test
Cable status: normal, 0 meter(s)
Pair Impedance mismatch: -
Pair skew: - ns
Pair swap: -
Pair polarity: -
Insertion loss: - db
Return loss: - db
Near-end crosstalk: - db
Summary of Contents for 5500-EI Series
Page 43: ...2 6 ...
Page 76: ...1 17 ...
Page 228: ...ii stp transmit limit 1 44 vlan mapping modulo 1 45 vlan vpn tunnel 1 46 ...
Page 477: ...5 24 Sysname vlan 2 Sysname vlan2 service type multicast ...
Page 503: ...2 3 System View return to User View with Ctrl Z Sysname dot1x url http 192 168 19 23 ...
Page 519: ...iii ...
Page 597: ...2 2 security policy server 192 168 0 1 user name format without domain ...
Page 648: ...1 9 Examples Clear static ARP entries Sysname reset arp static ...
Page 663: ...4 3 Sysname resilient arp interface vlan interface 2 ...
Page 767: ...1 28 From 12 00 Jan 1 2008 to 12 00 Jun 1 2008 ...
Page 1111: ...ii xmodem get 3 18 ...
Page 1314: ...A 44 Z ...