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Cisco Broadband Cable Command Reference Guide
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Chapter 3 Cisco CMTS Show Commands
show interface cable upstream
UGS Statistics for Upstream 3
# of Active UGS on the Upstream : 4
UGS Allocation Statistics
max min avg
Last 1 Hour 14 3 4
Last 5 Min 12 5 5
Router#
Table 3-61
describes the fields shown in the
show interface cable upstream
display.
Table 3-61 show interface cable upstream Field Descriptions
Field
Description
Cable
Indicates the location of the upstream interface.
Upstream is up/
...administratively down
Indicates the administrative state of the upstream interface.
Received broadcasts
Number of broadcast packets received through this upstream
interface.
multicasts
Number of multicast packets received through this upstream
interface.
unicasts
Number of unicast packets received through this interface.
discards
Number of packets discarded by this interface, typically because of
buffer overruns.
errors
Total of all packets with errors that prevented the transmission of
the packets through this upstream interface. This figure could
include the following errored packets:
•
Collisions of request and request/data packets
•
Damaged frames received during request and request data
requests or slots (typically because they had bad forward error
correction (FEC) header checksums (HCS)
•
Damaged frames received from ranging requests
•
Data packets with unique word, collision or no energy
•
Number of upstream bursts whose preamble or unique word
could not be correctly received
•
Packets with at least one frame with an uncorrectable error
On Broadband Processing Engines (BPE) cable interface line
cards, such as the Cisco uBR-MC16U/X, Cisco uBR-MC28U/X,
and Cisco uBR-MC5X20S/U cards, this counter also counts
conditions such as HCS/CRC errors and collisions that occur
during initial ranging requests and bandwidth requests. Compare
this counter with the uncorrectable error counter from the
show
cable hop
command to determine whether a problem with noise
exists, or whether the counter is high only because a large number
of CMs are trying to register.