363-206-285
Administration and Provisioning
Issue 3 June 2001
8-39
Table 8-19. Ring VT1.5 Cross Connections (Hairpin)
8
OC-3/OC-12/OC-1 Path Protected Ring Application 8
This is a path protected ring application with multiple NEs in a two-fiber ring. The
main optical units of each node in the ring are equipped with ring OLIU circuit
packs, the 22-type, 24-type, 27-type or 29-type to transport signals to the next NE
as well as drop signals at the NE. Valid mapping is provided by termination and
pass-through cross-connections.
From “From” CP Type To “To” CP Type
IT Comm
{a,b}-{1-2}-{1-7}-{1-4}
a-{1-2}-{1-7}-{1-4}*
b-{1-2}-{1-7}-{1-4}*
c-{1-2}-{1-7}-{1-4}*
27G2-U OLIU
27G2-U OLIU
27G2-U OLIU
27G2-U OLIU
<-->
<-->
<-->
<-->
c-{1-2}-{1-7}-{1-4}
a-{1-2}-{1-7}-{1-4}*
b-{1-2}-{1-7}-{1-4}*
c-{1-2}-{1-7}-{1-4}*
27G2-U OLIU
27G2-U OLIU
27G2-U OLIU
27G2-U OLIU
ent-crs-vt1:a-1-1
ent-crs-vt1:a-1-1
ent-crs-vt1:b-1-1
ent-crs-vt1:c-1-1-
{a,b}-{1-2}-{1-7}-{1-4}
c-{1-3}-{1-7}-{1-4}
{a,b}-{1-2}-{1-7}-{1-4}
22-type OLIU
22-type OLIU
22-type OLIU
<-->
<-->
<-->
c-{1-7}-{1-4}
{a,b}-{1-7}-{1-4}
c-{1-3}-{1-7}-{1-4}
STS1E/MXRVO
STS1E/MXRVO
22-type OLIU
ent-crs-vt1:a-1-1
ent-crs-vt1:c-1-1,
ent-crs-vt1:a-1-1
{a,b}-{1-7}-{1-4}
{a,b}-{1-7}-{1-4}
c-{1-7}-{1-4}
STS1E
STS1E
STS1E
<-->
<-->
<-->
c-{1-7}-{1-4}
c-{1-7}-{1-4}
{a,b}-{1-7}-{1-4}
STS1E
MXRVO
MXRVO
ent-crs-vt1:a-1-1
ent-crs-vt1:a-1-1
ent-crs-vt1:c-1-1,
* STS-1 number must be different in ‘from’ and ‘to’ addresses.
Table 8-20. Ring STS-3c Cross Connections
From “From” CP Type To “To” CP Type CIT Command
c-1 22 OLIU m-(1, 4, 7, 10) 29 OLIU ent-crs-sts3c:m-1, c-1
* STS-1 number must be different in ‘from’ and ‘to’ addresses.
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