9-44 Cisco BPX 8600 Series Reference
cnfrsrc
— Port 3 is guaranteed to support up to 15 PVCs, and no more. It is not guaranteed to support
any TVCs, but will support up to:
4907 TVCs, subject to availability of unallocated LCNs “z
1
” on a FIFO basis. The
configured maximum limit “m
1
(3)” of 7588 LCNs is ignored, as it is greater than the
unallocated LCNs, “z
1
”, of 4907.
— Port 4 supports no PVCS. It is guaranteed to support 100 TVCs, and no more.
• For ports 5-8:
z
1
= (g - sum ( a(x) ) - sum( n
1
(x) -0*270)
which simplifies to:
z
1
= (g - sum ( a(x) ) - sum( n
1
(x) )
and factoring in the sum of a (x) and the sum of n
1
(x), the above expression evaluates to:
= (8192 - (6100) - (310) ) = 1782 unallocated LCNs
The values shown in Table 9-7 for the port group containing ports 5-8 may be summarized as
follows:
— Port 5 will support 6000 PVCs, and at least 10 TVCs. It will support up to 1792 TVCs,
subject to availability of the 1782 unallocated LCNs “z
1
” on a FIFO basis. The configured
maximum limit “m
1
(5)” of 7588 is ignored, as it is greater than 1792 (the unallocated
1782 LCNs in the “z
1
” pool plus the 10 LCN guaranteed minimum already allocated from
the common pool “g” of 8192 LCNs).
— Port 6 will support no PVCs. It will support up to 100 TVCs subject to available LCNs, but
is not guaranteed to be able to support any TVCs.
— Port 7 is guaranteed to be able to support 100 PVCs and 200 TVCs. It will not support any
more.
— Port 8 will support no PVCs. It is not guaranteed to be able to support more than 100 TVCs,
but will support up to 1882 TVCs, subject to availability of the 1782 unallocated LCNs “z
1
”
on a FIFO basis. The configured maximum limit “m
1
(8)” of 2100 TVCS is ignored, as it is
greater than 1882 (the number of unallocated 1782 LCNs in the “z1” pool plus the 100 LCN
guaranteed minimum already allocated from the common pool “g” of 8192 LCNs).
