This procedure checks whether network
continuity might be the reason for dropped packets.
-
Enter the
ping command to test for a complete path to the end device
device# ping 10.24.81.2
PING 10.24.81.2 (10.24.81.2): 56 octets data
64 octets from 10.24.81.2: icmp_seq=0 ttl=128 time=9.4 ms
64 octets from 10.24.81.2: icmp_seq=1 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=2 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=3 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=4 ttl=128 time=0.3 ms
--- 10.24.81.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.3/2.1/9.4 ms
-
Enter the show interface
command to display whether packets are coming in or are dropped as errors.
device# show interface eth 0/1
Ethernet 0/1 is admin down, line protocol is down (admin down)
Hardware is Ethernet, address is 0000.aaaa.bbbb
Current address is 0000.aaaa.bbbb
Pluggable media present
Interface index (ifindex) is 203431936 (0xc202000)
MTU 1548 bytes
10G Interface
LineSpeed Actual : Nil
LineSpeed Configured : Auto, Duplex: Full
Priority Tag disable
Forward LACP PDU: Disable
Route Only: Disabled
Tag-type: 0x8100
Last clearing of show interface counters: 11:18:42
Queueing strategy: fifo
Receive Statistics:
0 packets, 0 bytes
Unicasts: 0, Multicasts: 0, Broadcasts: 0
64-byte pkts: 0, Over 64-byte pkts: 0, Over 127-byte pkts: 0
Over 255-byte pkts: 0, Over 511-byte pkts: 0, Over 1023-byte pkts: 0
Over 1518-byte pkts(Jumbo): 0
Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0
Errors: 0, Discards: 0
Transmit Statistics:
0 packets, 0 bytes
Unicasts: 0, Multicasts: 0, Broadcasts: 0
Underruns: 0
Errors: 0, Discards: 0
Rate info:
Input 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Route-Only Packets Dropped: 0
Time since last interface status change: 11:18:42
-
Enter the show media
interface command to check that the optics used are Brocade- or
Extreme-certified and that the Power fields are not zero.
device# show media interface ethernet 0/1
Interface Ethernet 0/1
Identifier 3 SFP
Connector 7 LC
Transceiver 0000000000000010 10_GB/s
Name sw
Encoding 6
Baud Rate 103 (units 100 megabaud)
Length 9u 0 (units km)
Length 9u 0 (units 100 meters)
Length 50u 8 (units 10 meters)
Length 62.5u 3 (units 10 meters)
Length Cu 0 (units 1 meter)
Vendor Name BROCADE
Vendor OUI 00:05:1e
Vendor PN 57-0000075-01 (10GE SR SFP+)
Vendor Rev A
Wavelength 850 (units nm)
Options 001a
BR Max 0
BR Min 0
Serial No AAF313060000MV6
Date Code 130206
Optical Monitor Yes
Temperature 20 Centigrade
Voltage 3286.2 (mVolts)
Current 0.278 (mAmps)
TX Power 13.3 (uWatts) / -18.761 (dBm)
RX Power 2.7 (uWatts)
Note
Some devices do not display TX Power.
-
Enter the show arp vrf command.
-
Enter the
show mac-address-table command to verify that the MAC address table learns new values.
The new MAC address should appear here.
-
Enter the show lldp neighbors
command to verify that LLDP reports all neighbors.
If the output does not show all neighbors,
contact your device support provider.
-
Enter the show
mac-address-table command to detect whether MAC addresses learned
from other network devices are present.
Enter this command on other
network devices to ensure that those devices can detect this MAC address.
