FD 100/320Gbps NT and FX NT IHub Services Guide Services Overview
Issue: 13 3HH-11985-AAAA-TQZZA 73
•
Public tunnel interface
• This interface can be either an IES or VPRN interface
• This interface represents the public side of the GRE tunnel
• Private tunnel interface
• This interface is the VPRN interface
• This interface represents the private side of the GRE tunnel
• The address for this interface needs to be part of the same subnet as the public
interface address
3.14.1 Public Tunnel SAPs
A VPRN or IES service (the delivery service) must have at least one IP interface
associated with a public tunnel SAP in order to receive and process GRE packets
associated with the GRE tunnel.
The public tunnel SAP has the format of tunnel-1.public:<index>, as shown in the
following CLI example:
config service ies 199 customer 1 create
interface “public-1” create
address 64.251.12.1/30
sap tunnel-1.public:200 create
exit all
3.14.2 Private Tunnel SAPs
A VPRN service must have an IP interface to a GRE tunnel in order to forward IP
packets into the tunnel, where they are GRE encapsulated, and to receive IP packets
from the tunnel after encapsulation has been removed. The IP interface is associated
with a private tunnel SAP.
The private tunnel SAP has the format of tunnel-1.public:<index>, as shown in the
following CLI example where a GRE tunnel is configured under the SAP:
config service vprn 1 customer 1 create
interface “gre tunnel to ce1” tunnel create
address 10.0.0.1/30
sap tunnel-1.private:210 create
gre-tunnel ”to ce1” to 10.0.0.2
source 64.251.12.1
remote-ip 12.47.10.33
delivery-service 199
dscp afl1
no shutdown
exit
ingress
egress
exit all
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