Lenovo RackSwitch G8264 Command Reference Manual page 228

Iscli - industry standard cli for lenovo enterprise network operating system 8.4

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Table of Contents

VLAN Discards

Filter Discards

Policy Discards

Non‐Forwarding State

IBP/CBP Discards

HOL‐blocking Dis‐

MMU Discards

Cell Error Discards

MMU Aging Discards

Other Discards

G8264 Command Reference for ENOS 8.4

Interface Statistics of a Port (continued)

For packet‐oriented interfaces, the number of outbound

packets that could not be transmitted because of errors.

For character‐oriented or fixed‐length interfaces, the

number of outbound transmission units that could not

be transmitted because of errors.

Discarded because the packet was tagged with a VLAN

to which this port is not a member.

Dropped by the Content Aware Engine (user‐configured

Dropped due to policy setting. For example, due to a

user‐configured static entry.

Discarded because the ingress port is not in the

forwarding state.

Discarded because of Ingress Back Pressure (flow

control), or because the Common Buffer Pool is full (for

example, insufficient packet buffering).

Discarded because of the Head Of Line (HOL) blocking

mechanism. Low‐priority packets are placed in a sepa‐

rate queue and can be discarded while applications or

the TCP protocol determine whether a retransmission is

necessary. HOL blocking forces transmission to stop

until the overloaded egress port buffer can receive data

Discarded because of the Memory Management Unit.

Discarded packets not included in any category.