YDK only returns single LDP remote label binding from list of remote label bindings (xr_mpls_ldp_oper)

[djsmith20171]

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Expected Behavior

List of LDP remote label bindings should be iterable.

Current Behavior

YDK is only returning / processing / iterating on the first item within the list.

Steps to Reproduce

See logs and script below.

Your Script

def process_mpls_ldp(mpls_ldp):
"""Process data in mpls_ldp object."""
# format string for prefixes
prefix_row = "{prefix}, rev {rev}\n"
local_binding_row = " Local binding: label: {label}\n"
peers_row = " Remote bindings: ({num_peers} peers)\n"
# format string for peer header
peer_header = (" Peer Label\n"
" ----------------- ---------\n")
# format string for remote bindings
remote_binding_row = " {peer:19} {label}\n"

label = {0: "ExpNull", 3: "ImpNull"}

show_mpls_ldp_bindings = str()

# iterate over all LDP bindings
for binding in mpls_ldp.global_.active.default_vrf.afs.af[0].bindings.binding:
    if binding.local_label in label:
        local_label = label[int(binding.local_label)]
    else:
        local_label = str(binding.local_label)
    show_mpls_ldp_bindings += prefix_row.format(prefix=binding.prefix,
                                                rev=binding.le_local_binding_revision)
    show_mpls_ldp_bindings += local_binding_row.format(label=local_label)

    # the len(binding.remote_binding) statement directly below returns 1 and should return >1.
    show_mpls_ldp_bindings += peers_row.format(num_peers=len(binding.remote_binding))
    show_mpls_ldp_bindings += peer_header

    # iterate over all remote bindings for a given prefix
    for remote_binding in binding.remote_binding:
        if remote_binding.remote_label in label:
            remote_label = label[remote_binding.remote_label]
        else:
            remote_label = str(remote_binding.remote_label)
        peer_ident = remote_binding.assigning_peer_ldp_ident
        peer_label_space_id = "{}:{}".format(peer_ident.lsr_id, str(peer_ident.label_space_id))
        show_mpls_ldp_bindings += remote_binding_row.format(peer=peer_label_space_id,
                                                            label=remote_label)

# return formatted string
return show_mpls_ldp_bindings.strip()

Logs

2018-01-11 09:47:27,708 - ydk - INFO - Path where models are to be downloaded: /home/admin/.ydk/198.18.1.11:830
2018-01-11 09:47:27,718 - ydk - INFO - Connected to 198.18.1.11 on port 830 using ssh with timeout of -1
2018-01-11 09:47:27,754 - ydk - INFO - Executing CRUD read operation
2018-01-11 09:47:27,802 - ydk - INFO - =============Generating payload to send to device=============
2018-01-11 09:47:27,802 - ydk - INFO -






ipv4













2018-01-11 09:47:27,803 - ydk - INFO -

2018-01-11 09:47:28,052 - ydk - INFO - =============Reply payload received from device=============
2018-01-11 09:47:28,053 - ydk - INFO -








ipv4


10.16.0.0/16

24005

172.16.255.101
0
172.16.255.101:0

false
false


24005

172.16.255.102
0
172.16.255.102:0

false
false



10.64.0.0/16

24006

172.16.255.101
0
172.16.255.101:0

false
false


24006

172.16.255.102
0
172.16.255.102:0

false
false



172.16.1.0/31

3

172.16.255.101
0
172.16.255.101:0

false
false


24003

172.16.255.102
0
172.16.255.102:0

false
false



172.16.1.2/31

24003

172.16.255.101
0
172.16.255.101:0

false
false


3

172.16.255.102
0
172.16.255.102:0

false
false



172.16.2.0/31

24002

172.16.255.101
0
172.16.255.101:0

false
false


3

172.16.255.102
0
172.16.255.102:0

false
false



172.16.2.2/31

3

172.16.255.101
0
172.16.255.101:0

false
false


24002

172.16.255.102
0
172.16.255.102:0

false
false



172.16.2.4/31

3

172.16.255.101
0
172.16.255.101:0

false
false


3

172.16.255.102
0
172.16.255.102:0

false
false



172.16.255.1/32

24007

172.16.255.101
0
172.16.255.101:0

false
false


24007

172.16.255.102
0
172.16.255.102:0

false
false



172.16.255.2/32

24000

172.16.255.101
0
172.16.255.101:0

false
false


24000

172.16.255.102
0
172.16.255.102:0

false
false



172.16.255.101/32

3

172.16.255.101
0
172.16.255.101:0

false
false


24001

172.16.255.102
0
172.16.255.102:0

false
false



172.16.255.102/32

24001

172.16.255.101
0
172.16.255.101:0

false
false


3

172.16.255.102
0
172.16.255.102:0

false
false



198.18.0.0/16

24004

172.16.255.101
0
172.16.255.101:0

false
false


24004

172.16.255.102
0
172.16.255.102:0

false
false



198.18.1.0/24

3

172.16.255.101
0
172.16.255.101:0

false
false


3

172.16.255.102
0
172.16.255.102:0

false
false

2018-01-11 09:47:28,053 - ydk - INFO -

10.16.0.0/16, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24005
10.64.0.0/16, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24006
172.16.1.0/31, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24003
172.16.1.2/31, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 3
172.16.2.0/31, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 3
172.16.2.2/31, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24002
172.16.2.4/31, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 3
172.16.255.1/32, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24007
172.16.255.2/32, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24000
172.16.255.101/32, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24001
172.16.255.102/32, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 3
198.18.0.0/16, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 24004
198.18.1.0/24, rev
Local binding: label:
Remote bindings: (1 peers)
Peer Label
----------------- ---------
172.16.255.102:0 3
2018-01-11 09:47:28,119 - ydk - INFO - Disconnected from device

System Information

• ydk (0.6.2)
• ydk-models-cisco-ios-xr (6.3.1)
• ydk-models-ietf (0.1.4)
• Python 3.5.2
• IOS XRv release 6.3.2.22I