Junos OS Interfaces Command Reference - Juniper Networks

Junos OS 12.1 Interfaces Command Reference
Table 145: Link Services show interfaces Output Fields (continued)
Field Name
Multilink Frame
Relay UNI NNI
active bundle links
statistics
(continued)
Frame exceptions
Buffering
exceptions
824
Field Description
• LIP—Link Interleaving Protocol information.
• Rcv—Number of messages received.
• Xmt—Number of messages transmitted.
• add_lnk—ADD__LINK message notifies the peer endpoint that the local
endpoint supports frame processing. It is generated on both ends of a bundle
link when a bundle link endpoint is ready to become operational.
• lnk_ack—ADD_LINK_ACK message notifies the peer that the local router has
received a valid ADD_LINK message.
• lnk_rej—ADD_LINK_REJ message notifies the peer that the local router has
received an invalid ADD_LINK message.
• hello—HELLO message notifies the peer that the local router is up. Both ends
of a link bundle generate this message.
• hel_ack—HELLO_ACK message notifies the peer that the local router has
received a valid HELLO message.
• lnk_rem—REMOVE_LINK message notifies the peer that the local router has
received a REMOVE_LINK message.
• rem_ack—REMOVE_LINK_ACK message notifies the peer that the local router
has received a valid ADD_LINK message.
For Multilink Frame Relay end-to-end only. Information about framing
exceptions. Includes events recorded under Exception Events for each logical
interface.
• Oversized frames—Number of frames received that exceed maximum frame
length. Maximum length is 4500 Kb (kilobits).
• Errored input frames—Number of input frame errors.
• Input on disabled link/bundle—Number of frames received on disabled links.
These frames can result either from an inconsistent configuration, or from a
bundle or link being brought up or down with traffic actively flowing through
it.
• Output for disabled link/bundle—Number of frames sent for a disabled or
unavailable link. These frames can result either from an inconsistent
configuration, or from a bundle being brought up or down while traffic is
flowing through it.
• Queuing drops—Total number of packets dropped before traffic enters the
link services IQ interface. Indicates that the interface is becoming
oversubscribed.
For Multilink Frame Relay end-to-end only. Information about buffering
exceptions. Includes events recorded under Exception Events for each logical
interface:
• Packet data buffer overflow—Packet buffer memory is full. This overflow can
occur when the aggregate data rate exceeds the physical link services
interface capacity.
• Fragment data buffer overflow—Fragment buffer memory is full. This overflow
can occur when excessive differential delay is experienced across the links
within a single bundle, or when the aggregate data rate exceeds the physical
link services interface capacity. Check the logical interface exception event
counters to determine which bundle is responsible.
Level of Output
detail extensive
detail extensive
detail extensive
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