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primary Only primary port is configured to operate
secondary Only redundant port is configured to operate
automatically Software controls port redundancy automatically
Link Failover Timeout
the router uses a different active link
Primary link selected x times Number of times that the I/O has used the
primary port since the module was last rebooted
Secondary link selected x times Number of times that the I/O has used the
secondary port since the module was last rebooted
Primary/Secondary link signal detected, Primary/Secondary link signal not
detected Specifies the port (primary or secondary) on which the router
detects a signal (not displayed on GE I/O modules that do not support SFPs)
5 minute input rate Data rates based on the traffic received in the last 5
minutes
5 minute output rate Data rates based on the traffic sent in the last 5
minutes
In Analysis of inbound traffic on this interface
Bytes Number of bytes received in error-free packets
Unicast Number of unicast packets received
Multicast Number of multicast packets received
Broadcast Number of broadcast packets received
Errors Total number of errors in all received packets; some packets
might contain more than one error
Discards Total number of discarded incoming packets
Mac Errors Number of incoming packets discarded because of MAC
sublayer failures
Alignment Number of incomplete octets received
CRC Number of packets discarded because the checksum that the
router computed from the data does not match the checksum generated
by the originating devices
Too Longs Number of packets discarded because the size exceeded
the MTU
Symbol Errors Number of symbols received that the router did not
correctly decode
Out Analysis of outbound traffic on this interface
Chapter 5: Configuring Ethernet Interfaces
Time to wait for a failed link to be active before
Monitoring Ethernet Interfaces
211
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