Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 317
If differential or dcr-acr clocking mode is configured on the 7705 SAR-M, 7705 SAR-A,
7705 SAR-X, or 4-port T1/E1 and RS-232 Combination module, the default timestamp
frequency is 103680.
If differential or dcr-acr clocking mode is configured on the 16-port T1/E1 ASAP Adapter
card, version 2, or the 32-port T1/E1 ASAP Adapter card, the default timestamp frequency is
77760.
For the 4-port OC3/STM1 / 1-port OC12/STM4 Adapter card and the 4-port DS3/E3 Adapter
card, the default timestamp frequency is 77760.
Parameters adaptive — enables adaptive clock recovery
dcr-acr — enables DCR and ACR on different ports of the same card
differential — enables differential clock recovery
timestamp-freq — sets the optional timestamp frequency
19440 — sets the timestamp frequency to 19440 Hz (19.44 MHz) for Y.1413 compliance
25000 — sets the timestamp frequency to 25000 Hz (25 MHz) for Ethernet-based
systems
77760 — sets the timestamp frequency to 77760 Hz (77.76 MHz) for interoperation with
SONET/SDN-based systems such as TSS-5
103680 — sets the timestamp frequency to 103680 Hz (103.68 MHz), recommended for
any operation over 100 MHz
fabric-stats-enabled
Syntax [no] fabric-stats-enabled
Context config>card>mda
Description This command enables the fabric port statistics counter to count egress traffic toward a
specified adapter card. The CSM allows the collection of fabric statistics from only one fabric
port at any given time. To change the port statistics counter to a different adapter card, turn
off statistics collection on the assigned adapter card by using no fabric-stats-enabled and
then enabling statistics collection on another adapter card.
Note: The 25000 and 103680 options are not supported on the 16-port T1/E1 ASAP
Adapter card, version 2, or the 32-port T1/E1 ASAP Adapter card. The 19440, 25000, and
103680 options are not supported on the 4-port OC3/STM1 / 1-port OC12/STM4 Adapter
card or the 4-port DS3/E3 Adapter card.
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