Figure 21-23 Vbr Connection, Policing = 4, Leaky Bucket 1 Noncompliant; Figure 21-24 Vbr.2 Connection, Policing = 2, With Buckets 1 And 2 Compliant - Cisco BPX 8620 Installation And Configuration Manual

Traffic Policing Examples

Figure 21-23 VBR Connection, Policing = 4, Leaky Bucket 1 nonCompliant

Connection setup
and compliance status:
VBR
Policing = 4
Bkt 1 depth > CDVT(0+1)
5
CLP=1 CLP=0
CLP(1) cell, 3, are shown as non-compliant
Figure 21-24 shows a VBR.2 connection policing example, with policing = 2, and both buckets
compliant. Leaky bucket two is policing the CLP(0) cell stream for conformance with maximum burst
size MBS (as specified by BT), and for compliance with the SCR sustained cell rate.

Figure 21-24 VBR.2 Connection, Policing = 2, with Buckets 1 and 2 Compliant

Connection setup
and compliance status:
VBR.2
Policing = 2
Bkt 1 depth < CDVT(0+1)
Bkt 2 depth < BT + CDVT
5
CLP=1
Time
interval
variations
CDVT(0+1)
Leaky Bkt 1
PCR(0+1)
Cisco BPX 8600 Series Installation and Configuration
21-48
4 3 2
CLP=1 CLP=0 CLP=0
Time interval variations
CDVT(0+1)
Leaky Bkt 1
PCR(0+1)
Two CLP(0) cells, 1 and 2, and one
with the CDVT(0+1) limit of Leaky Bkt 1
and are discarded in this example.
4 3 2
CLP=0 CLP=1 CLP=0 CLP=0
5
CLP=1
CLP=0
CLP(0) cells
+
compliant with
Leaky Bkt 1,
applied to
Leaky Bkt 2
CLP(0+1) cells
compliant with
Leaky Bkt 1,
admit to network
5 4
1
CLP=1 CLP=0
+
1
3 CLP(1) cells compliant with Leaky Bkt 1, admit to network
CLP=1
4 2 1
CLP=0 CLP=0
BT + CDVT
Leaky Bkt 2
SCR
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 21 Configuring ATM Connections
To network
Discard
4
CLP=0 CLP=0
CLP(0) cells
compliant
+
with Leaky Bkt 2,
admit to network
Discard
non-compliant
CLP(0) cells
2 1
CLP=0