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The IP aggregate protocol allows for the synchronization of V100 system clocks over the IP aggregate. An
IP aggregate peer can be configured to transfer clock synchronization data (derived from the local GRX or
GTX clock) to its peer. The peer can use this clock synchronization period to drive GRX and/or GTX.
NOTE: The IP aggregates require a system clocking resource in order to run the clock
synchronization period. Therefore if any IP aggregate is configured to either drive GRX or GTX
via the clocking menu, or is configured to relay clock synchronization via a Tx Clock setting in
the IP aggregate menu, then port 0:2 becomes unavailable for tributary or aggregate
configuration.
NOTE Implicit routing is not supported across IP aggregates. V100 routes across the IP
aggregate must be configured in the routing table.
The parameters and options are shown in the following table:
Field
Description
Peer IP Address
UDP Port
TOS
Mux Delay
Reseq Delay
Tx Clock
V100 Versatile Multiplexer Technical Manual Version 2.2
Options
Alphanumeric text
Numeric IP address entry
as:
nnn.nnn.nnn.nnn
0-65535
0-FF hex value
0-1000 milliseconds
0-1000 milliseconds
-
<GRX
<GTX
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C H A P T E R
3
C O N F I G U R I N G
Description
Up to 11 characters used to identify the
configuration. This is used in the Connect
Using field in the route table to match V100
routes to IP aggregates.
IP address of the IP Aggregate Peer.
The UDP Port number of the IP Aggregate
Peer. This must be configured to the same
value at each end of the IP aggregate.
Hex value relating to network provider's
TOS/DSCP scheme. The IP TOS value is used
in packets sent on each aggregate allows the
IP aggregate network edge nodes to make
bandwidth management service decisions
based on IP address, UDP port numbers
and/or IP TOS value.
The packetization period for multiplexed
packets to be sent over the IP aggregate.
The larger this value, the more efficient the
multiplexing over the IP aggregate is. The
smaller the value, the less jitter is
introduced over the IP aggregate
The maximum time to wait for out-of-
sequence packets. This should be set to the
largest expected variation in latency
between different paths between the IP
aggregate peers across an IP network with
multiple paths.
Setting this value too high creates unwanted
jitter that may affect voice and data quality
in networks where IP aggregate packets are
lost.
No clocking calibration information is sent to
the peer.
Clocking calibration information is sent to
the peer based on the GRX clock.
Clocking calibration information is sent to
the peer based on the GTX clock
V 1 0 0
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