OUTPUT-101 : Frame-Relay Traffic ShapingDecember 24, 2009
Often knowing the necessary show commands is not enough, you need to understand the output.
Here is a good example and breakdown of each of the fields with the command:
VC = 'DLCI's' Access List = 'Used to shape traffic of common type for separation' Target Rate = 'CIR in bits' Byte-Limit = 'Bc+Be ie the size the token bucket, express in BYTES' Sustain bits/int = 'Bc value per Tc, (int is short for interval or Tc)' Excess bits/int = 'Be value' Interval (ms) = 'Tc value' Increment (bytes) = 'How many bytes of token replenished each Tc, ie Bc value in bytes' Adapt Active = 'Shows Adaptive shaping has been enabled. If a BECN is received, the flow is throttled back'
What else can be set about the configuration here?
The interface have 3 DLCI’s defined.
DLCI’s 413 and 405 have a CIR of 56k. This was not configured. This is default behaviour. When ‘frame-relay traffic-shaping’ is enabled each DLCI on that interface will be allocated a 56k CIR unless changed. Here it is clear that DLCI 403 has a map-class policy applied.
Oh and Merry Christmas guys :D