![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/a/62/a6253af4-b1a9-4d23-b1e9-34436239c049/a6253af4-b1a9-4d23-b1e9-34436239c049-bg10d.png)
Tag Switching 9-41
cnfrsrc
The values shown in Table 9-6 for the port group containing ports 1-4 may be summarized as
follows:
— Port 1 is guaranteed to be able to support 120 AutoRoute connections (PVCs) and 3000 tag
VCs (TVCs). It will not support more than 120 PVCs. It may be able to support up to 3500
TVCs, subject to availability of unallocated LCNs “z
1
” on a FIFO basis. Since “m
1
(1)” of
3500 is less than “z
1
“ of 3827, the most TVCs that can be supported are 3500.
— Port 2 will support up to 50 PVCs, and no more. It will support no TVCs, as “m
1
(2)” = 0.
— 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:
3827 TVCs, subject to availability of unallocated LCNs “z
1
” on a FIFO basis. The
configured maximum limit “m
1
(3)” of 7048 LCNs is ignored, as it is greater than the
unallocated LCNs, “z
1
”, of 3827.
— 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) -4*270)
and factoring in the sum of a (x) and the sum of n
1
(x), the above expression evaluates to:
= (8192 - (6100) - (310) - 4*270) = 702 unallocated LCNs
The values shown in Table 9-6 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 712 TVCs, subject
to availability of the 702 unallocated LCNs “z
1
” on a FIFO basis. The configured maximum
limit “m
1
(5)” of 7048 is ignored, as it is greater than 712 (the unallocated 702 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 802 TVCs, subject to the availability of the 702 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 802 (the number of unallocated 702 LCNs in the “z
1
” pool plus the 100 LCN
guaranteed minimum already allocated from the common pool “g” of 8192 LCNs).