Table 2. Feature History
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Feature Name
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Release Information
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Description
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IPv6 Support for Span Loss Calculation
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Cisco IOS XR Release 7.10.1
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You can now perform span loss calculations on IPv6 spans connecting two NCS 1001 nodes. As a result, the advantages of larger
address space can be leveraged by configuring IPv6 addresses on the management interfaces used for communication between the
two nodes.
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From Release 7.10.1, in addition to IPv4, span loss calculation is performed using IPv6 addresses. The IPv6 addresses must
be configured on the management interfaces of IPv6-enabled NCS 1001 nodes.
The feature uses DCN or OSC (OSPF) to allow the exchange of power measurement between the NCS systems (that are required to
make calculation of span losses). In both cases, you must enable the feature and node type (TERM or ILA) on each of the systems.
Limitation of IPv6 Support:
Span loss calculation with IPv6 is not supported on the OSC management interfaces of NCS 1001 nodes, because even with the
OSPFv3 protocol, discovery of the neighbor returns the IPv4 router ID instead of the IPv6 router ID. This makes it difficult
to automatically resolve the IPv6 addressing.
Note
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IPv4 and IPv6 must be configured in a mutually exclusive way.
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To enable the feature for an EDFA equipped in the slot of a TERM node, use these commands:
#configure terminal
(config)#hw-module location 0/RP0/CPU0
slot n
ampli span-loss
(config)#hw-module location 0/RP0/CPU0
slot n
ampli node-type TERM
(config)#commit
(config)#end
Example:
#configure terminal
(config)#hw-module location 0/RP0/CPU0 slot 1 ampli span-loss
(config)#hw-module location 0/RP0/CPU0 slot 1 ampli node-type TERM
(config)#commit
(config)#end
To enable the feature for an EDFA equipped in the slot of an ILA node, use these commands:
#configure terminal
(config)#hw-module location 0/RP0/CPU0
slot n
ampli span-loss
(config)#hw-module location 0/RP0/CPU0
slot n
ampli node-type ILA
(config)#commit
(config)#end
Example:
#configure terminal
(config)#hw-module location 0/RP0/CPU0 slot 1 ampli span-loss
(config)#hw-module location 0/RP0/CPU0 slot 1 ampli node-type ILA
(config)#commit
(config)#end
For both OSC (OSPF) and DCN Span Loss Calculation, use the commands below to define the local node IP, remote node IP, and
remote card slot coupled with the local node on each system involved:
The commands to perform span loss calculation using the IPv4 address:
#configure terminal
(config)# hw-module location 0/RP0/CPU0
slot n
ampli remote-node local-ipv4
LocalIPv4 address
remote-ipv4
RemoteIPv4 address
remote-slot-id
m
(config)#commit
(config)#end
where n is the slot number (1, 2 or 3) of the local EDFA involved.
m is the slot number (1, 2 or 3) of the EDFA equipped on the remote node.
localIPv4 is the IP address of local node.
remoteIPv4 is the IP address of remote node.
The commands to perform span loss calculation using the IPv6 address:
#configure terminal
(config)# hw-module location 0/RP0/CPU0
slot n
ampli remote-node local-ipv6
LocalIPv6 address
remote-ipv6
RemoteIPv6 address
remote-slot-id
m
(config)#commit
(config)#end
where n is the slot number (1, 2 or 3) of the local EDFA involved.
m is the slot number (1, 2 or 3) of the EDFA equipped on the remote node.
localIPv6 is the IP address of local node.
remoteIPv6 is the IP address of remote node.
You must wait for at least five minutes for the first automatic calculation to be triggered. To trigger the calculation, use
this command:
#hw-module slot
n
span-loss calculation
For the examples for span loss calculation using the IPv4 or IPv6 address, see the Span Loss Calculation Use Cases.
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