Specifications

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Cisco ONS 15454 Product Overview, R3.3
May 2002
Cisco ONS 15454 Product Overview
Network Management
and puts them together to create a topology of the entire network or area. From
this database, the router calculates a routing table by constructing a shortest path
tree. Routes are continuously recalculated to capture ongoing topology changes.
You can enable OSPF on the ONS 15454s so that the ONS 15454 topology is sent
to OSPF routers on a LAN. Advertising the ONS 15454 network topology to LAN
routers eliminates the need to manually provision static routes for ONS 15454
subnetworks.
Static Route Provisioning
The ONS 15454 uses CTC to provision static network routes. Static routes allow
workstations to connect to ONS 15454s through routers. Static routes also make
it possible to have multiple CTC sessions, with different destination IP addresses,
on a network of ONS 15454s that all lie on the same subnet. For example, a
network operations center (NOC) can remotely monitor an ONS 15454 through
CTC concurrently with an on-site employee logged into a network ONS 15454
with a separate CTC session. If OSPF is connected and running, static routes are
unnecessary.
DCC Tunneling
You can tunnel third-party SONET equipment DCCs across ONS 15454 networks. A
DCC tunnel is a series of connection points that map a third-party equipment DCC to
ONS 15454 DCCs. A DCC tunnel end point is defined by the slot, port, and DCC type.
To create a DCC tunnel, you connect the tunnel end points from one ONS 15454
optical port to another. DCC traffic is forwarded transparently, byte-for-byte, across
the ONS 15454 network.