User's Manual 358 Document #: LTRT-42060
Mediant 2600 E-SBC
Parameter Description
Rate
CLI: rate
[SBCAdmissionControl_Rate]
Defines the rate (in seconds) at which tokens are added to the
token bucket per second (i.e., token rate).
The default is 0 (i.e., unlimited rate).
Notes:
You must first configure the Maximum Burst parameter (see
below) before configuring the Rate parameter.
The token bucket feature is per IP Group, SRD, SIP request
type, and SIP request direction.
Maximum Burst
CLI: max-burst
[SBCAdmissionControl_MaxBur
st]
Defines the maximum number of tokens (SIP dialogs) that the
bucket can hold. The device only accepts a SIP dialog if a token
exists in the bucket. Once the SIP dialog is accepted, a token is
removed from the bucket. If a SIP dialog is received by the
device and the token bucket is empty, then the device rejects
the SIP dialog. Alternatively, if the bucket is full, for example,
100 tokens, and 101 SIP dialogs arrive (before another token is
added to the bucket, i.e., faster than that defined in the Rate
field), then the device accepts the first 100 SIP dialogs and
rejects the last one.
Dropped requests are replied with the SIP 480 "Temporarily
Unavailable"
response. Dropped requests are not counted in the
bucket.
The default is 0 (i.e., unlimited SIP dialogs).
Note: The token bucket feature is per IP Group, SRD, SIP
request type, and SIP request direction.
Reservation
CLI: reservation
[SBCAdmissionControl_Reserva
tion]
Defines the guaranteed (minimum) call capacity.
Notes:
An IP Group ID or SRD ID must be specified when this
parameter is configured and the IP Group or SRD cannot be
set to all (-1).
Reserved call capacity is applicable only to INVITE and
SUBSCRIBE messages.
Reserved call capacity must be less than the maximum
capacity (limit) configured for the CAC rule.
The total reserved call capacity configured for all the CAC
rules must be within the device's total call capacity support.
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