How to program the LDP

yitung — Wed, 21 Dec 2016 09:00:19 GMT

I'm working on an PoC for ASR9K. And would like to demonstrate how to program the MPLS-te tunnel.

First thing first, I want to know how to program the LDP like the CLI below?? any sample config??

I saw there is a Cisco_IOS_XR_mpls_ldp_oper module and Cisco_IOS_XR_mpls_ldp_cfg module but donno how to use it...

example:

router ospf 1000

log adjacency changes

network point-to-point

area 10

mpls traffic-eng <<<<<

interface Loopback0

passive enable

interface GigabitEthernet0/0/0/0

cost 1

mpls ldp sync <<<<<

interface GigabitEthernet0/0/0/1

cost 1

mpls ldp sync

mpls traffic-eng router-id Loopback0

mpls ldp <<<<<<

router-id 10.1.11.1

interface GigabitEthernet0/0/0/0

interface GigabitEthernet0/0/0/1

interface GigabitEthernet0/0/0/2

Re: How to program the LDP

yitung — Tue, 03 Jan 2017 15:59:38 GMT

Here's sample to construct "mpls ldp" config and mpls ldp sync under ospf:

def config_ospf(provider, keys, router_info, ospf):

name_scope = area_area_id.name_scopes.NameScope()

name_scope.interface_name = interface_name

if interface_ospf_ldp=="Y":

name_scope.ldp_sync=True <<<<<

def config_mplsldp(provider, keys, router_info, mplsldp):

lines=read_interface_files()

connected_router=router_info[12]

interface_mpls_ldp_config=mplsldp.default_vrf.interfaces.Interface()

for line in lines:

p=line.split(",")

if p[0]==connected_router:

# Create router_id

interface_name=p[1]

ipv4addr, netmask = cidr_to_netmask(p[2])

interface_mpls_ldp=p[7]

if interface_name=="Loopback0":

mplsldp.default_vrf.global_.router_id=ipv4addr

else:

if interface_mpls_ldp=="Y":

interface_mpls_ldp_config.interface_name=interface_name

interface_mpls_ldp_config.enable=Empty()

mplsldp.default_vrf.interfaces.interface.append(interface_mpls_ldp_config)

mplsldp.enable=Empty()

# create configuration on NETCONF device

crud.create(provider, mplsldp)

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How to program the LDP

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