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dls: Data Link Services Information
Base
The Data Link Services information base contains variables that access
the data link statistics for configured circuits. The structure is:
dls
cct name circuit name
variables listed below
The pathnames are constructed as shown in the following examples:
dls.variable
dls.cct name.variable
re_rx_dma_ring_cnt This stat shows the number of packets in the
circuit’s DLS receive ring. This statistic exists only on the routing engine
for HP series 600 routers. There is a DLS receive ring per circuit. The
circuit’s DLS RX ring is filled by the routing engine as it pulls global
packet buffer pointers from the interface module that owns the circuit.
rx_dma_drops These are the number of received packets dropped by
an interface module due to global packet memory congestion (that is,
lack of global packet buffers). This situation occurs when the routing
engine cannot keep up with the aggregate packet input rate. The inter-
face module sees that the RE is out of global buffers, so it drops the
incoming packets.
test_cmd_rx contains the number of 802.2 Logical Link Control
(LLC) Test commands received by circuit cct. Test commands seek to
provide a basic verification of the LLC-to-LLC transmission path. The
value contained in this variable should equal the value contained in
test_rsp_tx.
test_cmd_tx contains the number of 802.2 Logical Link Control (LLC)
Test commands issued on circuit cct. The value contained in this vari-
able should be 0, as should the value of test_rsp_rx.
Managment
Information Base
18
Management Information Base Variables
dls: Data Link Services Information Base
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