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Table Of Contents
Configuring Point-to-Point Topologies
About Point-to-Point Topologies
Configuring a Point-to-Point Topology with Splitter Protection
Configuring a Point-to-Point Topology with Line Card Protection
Configuring an Unprotected Point-to-Point Topology
Configuring Point-to-Point Topologies
This chapter describes how to configure point-to-point topologies. This chapter contains the following sections:
• About Point-to-Point Topologies
• Configuring a Point-to-Point Topology with Splitter Protection
• Configuring a Point-to-Point Topology with Line Card Protection
• Configuring an Unprotected Point-to-Point Topology
About Point-to-Point Topologies
In a point-to-point topology, two Cisco ONS 15540 systems are connected to each other in the network. Each of the systems originates and terminates all configured channels. You can use splitter protection to protect against fiber failure, or line card protection to protect against both the fiber and transponder failures. To also protect against client failure, you can implement protection on the client equipment itself.
Note Client protection implementation is beyond the scope of this document.
Up to 32 client signals in splitter protection mode, or 16 client signals in line card protection mode, are optically multiplexed at each end and are multiplexed onto a single fiber pair. Figure 7-1 shows an example of this topology using two DWDM fiber links, one working and one protection.
Figure 7-1 Protected Point-to-Point Topology Example
Figure 7-2 shows an example of an unprotected point-to-point topology using one unprotected DWDM fiber link.
Figure 7-2 Unprotected Point-to-Point Topology Example
Point-to-point topologies have many common applications, including extending the reach of Gigabit Ethernet or SONET in long-haul transport.
Note Point-to-point topologies support an intermediate add/drop node only in an unprotected configuration. If add/drop with protection is required, a ring configuration should be used.
For more information on point-to-point topologies, refer to the
Cisco ONS 15540 ESP Planning and Design Guide.Configuring a Point-to-Point Topology with Splitter Protection
Figure 7-3 shows how the modules are installed in the shelf for a 32-channel point-to-point topology.Thirty-two client signals of any supported protocol are carried over the trunk fiber, which is protected. This scenario assumes that splitter protection is being used and the working path is through slot 0 on both nodes.
Figure 7-3 Shelf Configuration for Splitter Protected 32-Channel Point-to-Point Topology
Figure 7-4 shows how the terminal mux/demux modules are cabled for the 32-channel splitter protected point-to-point configuration.
Figure 7-4 Terminal Mux/Demux Module Cabling with OSC for Splitter Protected 32-Channel Point-to-Point Topology
Patch Connections
Node1# configure terminal
Node1(config)# patch wave 0 oscfilter 0/0
Node1(config)# patch wave 1 oscfilter 1/0
Node1(config)# patch filterband 0/0/0 filtergroup 0/2/0
Node1(config)# patch filterband 0/0/1 filtergroup 0/2/1
Node1(config)# patch filterband 1/0/0 filtergroup 1/2/0
Node1(config)# patch filterband 1/0/1 filtergroup 1/2/1
Transparent Interfaces
Node1(config)# interface transparent 2/0/0
Node1(config-if)# encapsulation sonet oc12
Node1(config-if)# monitor enable
Node1(config-if)# exit
<Configure the remaining transparent interfaces in the shelf>
APS
Node1(config)# redundancy
Node1(config-red)# associate interface wavepatch */*/0 wavepatch */*/1 enable
Node1(config-red)# end
Node1# copy system:running-config nvram:startup-config
Repeat the entire preceding configuration on node 2.
Configuring a Point-to-Point Topology with Line Card Protection
Figure 7-5 shows how the modules are installed in the shelf for a 16-channel point-to-point topology with line card protection. Sixteen client signals of any supported protocol are carried over the trunk fiber, which is also protected.
Note For information about configuring nodes with more than 16 channels and line card protection, see "Configuring Point-to-Point Topologies"
Figure 7-5 Shelf Configuration for Line Card Protected 32-Channel Point-to-Point Topology
Figure 7-6 shows how the terminal mux/demux modules are cabled for the 16-channel line card protected point-to-point configuration.
Figure 7-6 Terminal Mux/Demux Module Cabling with OSC for Line Card Protected 16-Channel Point-to-Point Topology
Node 1
Patch Connections
Node1# configure terminal
Node1(config)# patch wave 0 oscfilter 0/0
Node1(config)# patch wave 1 oscfilter 1/2
Transparent Interfaces
Node1(config)# interface transparent 2/0/0
Node1(config-if)# encapsulation sonet oc12
Node1(config-if)# monitor enable
Node1(config-if)# exit
<Configure the remaining transparent interfaces in the shelf>
APS
Use the following commands to configure y-cable protection. The working path is through slot 0.
Node1(config)# redundancy
Node1(config-red)# associate group channel1
Node1(config-red-aps)# aps working transparent 2/0/0
Node1(config-red-aps)# aps protection transparent 8/0/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel2
Node1(config-red-aps)# aps working transparent 2/1/0
Node1(config-red-aps)# aps protection transparent 8/1/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel3
Node1(config-red-aps)# aps working transparent 2/2/0
Node1(config-red-aps)# aps protection transparent 8/2/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel4
Node1(config-red-aps)# aps working transparent 2/3/0
Node1(config-red-aps)# aps protection transparent 8/3/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel5
Node1(config-red-aps)# aps working transparent 3/0/0
Node1(config-red-aps)# aps protection transparent 9/0/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel6
Node1(config-red-aps)# aps working transparent 3/1/0
Node1(config-red-aps)# aps protection transparent 9/1/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel7
Node1(config-red-aps)# aps working transparent 3/2/0
Node1(config-red-aps)# aps protection transparent 9/2/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel8
Node1(config-red-aps)# aps working transparent 3/3/0
Node1(config-red-aps)# aps protection transparent 9/3/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel9
Node1(config-red-aps)# aps working transparent 4/0/0
Node1(config-red-aps)# aps protection transparent 10/0/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel10
Node1(config-red-aps)# aps working transparent 4/1/0
Node1(config-red-aps)# aps protection transparent 10/1/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel11
Node1(config-red-aps)# aps working transparent 4/2/0
Node1(config-red-aps)# aps protection transparent 10/2/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel12
Node1(config-red-aps)# aps working transparent 4/3/0
Node1(config-red-aps)# aps protection transparent 10/3/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel13
Node1(config-red-aps)# aps working transparent 5/0/0
Node1(config-red-aps)# aps protection transparent 11/0/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel14
Node1(config-red-aps)# aps working transparent 5/1/0
Node1(config-red-aps)# aps protection transparent 11/0/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel15
Node1(config-red-aps)# aps working transparent 5/2/0
Node1(config-red-aps)# aps protection transparent 11/2/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# exit
Node1(config-red)# associate group channel16
Node1(config-red-aps)# aps working transparent 5/3/0
Node1(config-red-aps)# aps protection transparent 11/3/0
Node1(config-red-aps)# aps y-cable
Node1(config-red-aps)# aps enable
Node1(config-red-aps)# end
Node1# copy system:running-config nvram:startup-config
Repeat the entire preceding configuration on node 2.
Configuring an Unprotected Point-to-Point Topology
Figure 7-7 shows how the modules are installed in the shelf for a 32-channel point-to-point topology without protection.
Figure 7-7 Shelf Configuration for Unprotected 32-Channel Point-to-Point Topology
Figure 7-8 shows how the terminal mux/demux modules are cabled for the 32-channel unprotected point-to-point configuration.
Figure 7-8 Terminal Mux/Demux Module Cabling with OSC for Unprotected 32-Channel Point-to-Point Topology
Patch Connections
Node 1
Node1# configure terminal
Node1(config)# patch wave 0 oscfilter 0/0
Node1(config)# patch filterband 0/0/0 filtergroup 0/2/0
Node1(config)# patch filterband 0/0/1 filtergroup 0/2/1
Node 2
Node2# configure terminal
Node2(config)# patch wave 0 oscfilter 0/0
Node2(config)# patch filterband 0/0/0 filtergroup 0/2/0
Node2(config)# patch filterband 0/0/1 filtergroup 0/2/1
Transparent Interfaces
Node 1
Node1(config)# interface transparent 2/0/0
Node1(config-if)# encapsulation sonet oc12
Node1(config-if)# monitor enable
Node1(config-if)# exit
<Configure the remaining transparent interfaces in the shelf>
Node1# copy system:running-config nvram:startup-config
Node 2
Node2(config)# interface transparent 2/0/0
Node2(config-if)# encapsulation sonet oc12
Node2(config-if)# monitor enable
Node2(config-if)# end
<Configure the remaining transparent interfaces in the shelf>
Node2# copy system:running-config nvram:startup-config
Posted: Thu Jul 15 11:36:04 PDT 2004
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