1. BNG Baseline Validation
Note
Apply these checks on the BNGs running SROS.
1.1 General Tests
1.1.1 Check software version and BOF
Use the following commands to verify the running software version and the BOF parameters:
[/]
A:admin@MASTER# show version
TiMOS-C-25.10.R2 cpm/x86_64 Nokia 7750 SR Copyright (c) 2000-2025 Nokia.
All rights reserved. All use subject to applicable license agreements.
Built on Wed Dec 17 21:07:16 UTC 2025 by builder in /builds/2510B/R2/panos
A:admin@MASTER# //show bof
INFO: CLI #2051: Switching to the classic CLI engine
INFO: CLI #2050: Classic CLI modification of the configuration is not allowed - 'model-driven' management interface configuration mode active
*A:MASTER# /show bof
===============================================================================
BOF (Memory)
===============================================================================
primary-image cf3:\
primary-config cf3:\config.cfg
license-file cf3:\license.txt
address 10.99.1.2/24 active
address fd00:cafe::2/64 active
static-route 0.0.0.0/0 next-hop 10.99.1.1
static-route ::/0 next-hop fd00:cafe::1
autonegotiate
duplex full
speed 100
wait 3
persist off
no li-local-save
no li-separate
console-speed 115200
system-base-mac 1c:59:00:00:00:00
===============================================================================
INFO: CLI #2052: Switching to the MD-CLI engine
1.1.2 Check node inventory
Display the type, model, and serial number of the chassis and installed cards:
[/]
A:admin@MASTER# show card
===============================================================================
Card Summary
===============================================================================
Slot Provisioned Type Admin Operational Comments
Equipped Type (if different) State State
-------------------------------------------------------------------------------
1 iom5-e:he1200g+ up up
2 iom4-e-b up up
A cpm5 up up/active
B cpm5 up up/standby
===============================================================================
[/]
A:admin@MASTER# show card 1 detail
===============================================================================
Card 1
===============================================================================
Slot Provisioned Type Admin Operational Comments
Equipped Type (if different) State State
-------------------------------------------------------------------------------
1 iom5-e:he1200g+ up up
IOM Card Licensing Data
Licensed Level : he1200g+
Description : 1.2T /w Agg to 2.4T, High Edge Routing
[/]
A:admin@MASTER# show mda
===============================================================================
MDA Summary
===============================================================================
Slot Mda Provisioned Type Admin Operational
Equipped Type (if different) State State
-------------------------------------------------------------------------------
1 1 me6-100gb-qsfp28 up up
2 1 isa2-bb up up
me-isa2-ms
===============================================================================
1.1.3 Show system information
Use these commands to review:
- router uptime and last reboot context
- power module status
- active alarms
[/]
A:admin@MASTER# show system information
===============================================================================
System Information
===============================================================================
System Name : MASTER
System Type : 7750 SR-7
Chassis Topology : Standalone
System Version : C-25.10.R2
System Contact :
System Location :
System Coordinates :
System Active Slot : A
System Up Time : 0 days, 00:43:21.05 (hr:min:sec)
System Up Time (64-bit): 0 days, 00:43:21.05 (hr:min:sec)
Configuration Mode Cfg : model-driven
Configuration Mode Oper: model-driven
Last Mode Changed : 2026/03/08 13:10:24 Duration: 0d 00:00:00
SNMP Port : 161
SNMP Engine ID : 0000197f00001c5900000000
SNMP Engine Boots : 3
SNMP Max Message Size : 9216
SNMP Max Bulk Duration : N/A
SNMP Admin State : Enabled
SNMP Oper State : Enabled
SNMP Index Boot Status : Persistent
SNMP Sync State : OK
Tel/Tel6/SSH/FTP Admin : Disabled/Disabled/Enabled/Disabled
Tel/Tel6/SSH/FTP Oper : Down/Down/Up/Down
BOF Source : cf3:
Image Source : primary
Config Source : N/A
Last Booted Config File: N/A
Last Boot Cfg Version : N/A
Last Boot Config Header: #CONTENT - BNG "MASTER" #1. SYSTEM NAME #2. TIME #3.
GRPC #4. NETCONF #5. SNMP #6. SSH #7. SYSTEM USERS
PROFILES #8. SYSTEM USERS #9. LOGS #10. CARDS #
10.1. IOM # 10.2. MDA # 10.3. SFM #11. ROUTER
BASE #12. PORTS # 12.1. PORT TO BNG2 # 12.2.
PORT TO OLT # 12.3. PORT TO LIG # 12.4. PORT
TO DNS # 12.5. PORT TO CARRIER1 # 12.6. PORT
TO CARRIER2 #13. INTERFACE TO BNG2 #14. IS-IS #15.
LDP #16. IBGP # 16.1. GROUPS # 16.2. NEIGHBORS
#17. COMMUNITIES #18. PREFIX-LIST #19. EXPORT/IM
[/]
A:admin@MASTER# show chassis power-supply
===============================================================================
Chassis 1 Detail
===============================================================================
Power Supply Information
Number of power supplies : 2
Power supply number : 1
Defaulted power supply type : dc
Power supply model : pem
Status : up
Power supply number : 2
Defaulted power supply type : dc
Power supply model : pem
Status : up
===============================================================================
[/]
A:admin@MASTER# show system alarms
===============================================================================
Alarms [Critical:0 Major:0 Minor:0 Warning:0 Total:0]
===============================================================================
Index Date/Time Severity Alarm Resource
Details
-------------------------------------------------------------------------------
No Matching Entries
===============================================================================
1.1.4 Show interface status
Use the following commands to verify the operational status of ports and router interfaces:
show port <port-id> detailshow router interface <id> detail
[/]
A:admin@MASTER# show port
===============================================================================
Ports on Slot 1
===============================================================================
Port Admin Link Port Cfg Oper LAG/ Port Port Port C/QS/S/XFP/
Id State State MTU MTU Bndl Mode Encp Type MDIMDX
-------------------------------------------------------------------------------
1/1/c1 Up Link Up conn 100GBASE-LR4*
1/1/c1/1 Up Yes Up 8936 8936 - hybr dotq cgige
1/1/c2 Up Link Up conn 100GBASE-LR4*
1/1/c2/1 Up Yes Up 8936 8936 - hybr qinq cgige
1/1/c3 Up Link Up conn 100GBASE-LR4*
1/1/c3/1 Up Yes Up 8936 8936 - hybr dotq cgige
1/1/c4 Up Link Up conn 100GBASE-LR4*
1/1/c4/1 Up Yes Up 8936 8936 - hybr dotq cgige
1/1/c5 Up Link Up conn 100GBASE-LR4*
1/1/c5/1 Up Yes Up 8936 8936 - hybr dotq cgige
1/1/c6 Up Link Up conn 100GBASE-LR4*
1/1/c6/1 Up Yes Up 8936 8936 - hybr dotq cgige
===============================================================================
Ports on Slot 2
===============================================================================
Port Admin Link Port Cfg Oper LAG/ Port Port Port C/QS/S/XFP/
Id State State MTU MTU Bndl Mode Encp Type MDIMDX
-------------------------------------------------------------------------------
2/1/nat-in-ip Up Yes Up - accs qinq vport
2/1/nat-out-ip
Up Yes Up - accs qinq vport
2/1/nat-in-l2 Up Yes Up - netw dotq vport
2/1/lns-net Up Yes Up - accs qinq vport
2/1/lns-esm Up Yes Up - accs qinq vport
2/1/nat-in-ds Up Yes Up - accs qinq vport
2/1/lo-gre Up Yes Up - accs dotq vport
===============================================================================
Ports on Slot A
===============================================================================
Port Admin Link Port Cfg Oper LAG/ Port Port Port C/QS/S/XFP/
Id State State MTU MTU Bndl Mode Encp Type MDIMDX
-------------------------------------------------------------------------------
A/1 Up Yes Up 1514 1514 - netw null faste MDI
A/3 Down No Down 1514 1514 - netw null faste
A/4 Down No Down 1514 1514 - netw null faste
===============================================================================
Ports on Slot B
===============================================================================
Port Admin Link Port Cfg Oper LAG/ Port Port Port C/QS/S/XFP/
Id State State MTU MTU Bndl Mode Encp Type MDIMDX
-------------------------------------------------------------------------------
B/1 Up Yes Up 1514 1514 - netw null faste MDI
B/3 Down No Down 1514 1514 - netw null faste
B/4 Down No Down 1514 1514 - netw null faste
===============================================================================
[/]
A:admin@MASTER# show port 1/1/c1/1 detail
===============================================================================
Ethernet Interface
===============================================================================
Description : 100-Gig Ethernet
Interface : 1/1/c1/1 Oper Speed : 100 Gbps
FP Number : 1 MAC Chip Number : 1
Link-level : Ethernet Config Speed : N/A
Admin State : up Oper Duplex : full
Oper State : up
Config Duplex : N/A
Physical Link : Yes MTU : 8936
Single Fiber Mode : No Min Frame Length : 64 Bytes
IfIndex : 35700737 Hold time up : 0 seconds
Last State Change : 03/08/2026 14:02:16 Hold time down : 0 seconds
Hold Time Down Rmng: 0 cs Hold Time Up Rmng: 0 cs
Last Cleared Time : N/A
Phys State Chng Cnt: 1
RS-FEC Config Mode : None
RS-FEC Oper Mode : None
On the BNG SLAVE, the equivalent routed interface is to_MASTER:
[/]
A:admin@MASTER# show router interface "to_SLAVE" detail
===============================================================================
Interface Table (Router: Base)
===============================================================================
-------------------------------------------------------------------------------
Interface
-------------------------------------------------------------------------------
If Name : to_SLAVE
Admin State : Up Oper (v4/v6) : Up/Down
Down Reason V6 : ifProtoOperDown
Protocols : ISIS LDP
IP Addr/mask : 172.99.1.0/31 Address Type : Primary
IGP Inhibit : Disabled Broadcast Address : Host-ones
HoldUp-Time : 0 Track Srrp Inst : 0
-------------------------------------------------------------------------------
Details
-------------------------------------------------------------------------------
1.1.5 Check system time
Use show time to verify the current date and time on the BNGs.
By default, the timezone is set to est. You can change it with:
[gl:/configure]
A:admin@MASTER# system time zone standard name
<name>
hst
akst
pst
mst
cst
est
ast
nst
utc
gmt
wet
cet
eet
msk
msd
awst
acst
aest
nzst
[/]
A:admin@MASTER# show time
Sun Mar 8 14:58:53 EST 2026
1.1.6 Verify NTP
Check the active NTP server.
If needed, select the best Google NTP IP according to the region latency. To identify the closest reachable IP, run:
ping time.google.com
Pinging time.google.com [216.239.35.12] with 32 bytes of data:
Reply from 216.239.35.12: bytes=32 time=8ms TTL=109
Reply from 216.239.35.12: bytes=32 time=8ms TTL=109
Reply from 216.239.35.12: bytes=32 time=8ms TTL=109
Reply from 216.239.35.12: bytes=32 time=8ms TTL=109
That returns the IP that best matches the current region.
[gl:/configure system time ntp]
A:admin@MASTER# show system ntp servers
===============================================================================
NTP Active Associations
===============================================================================
State Reference ID St Type A Poll Reach Offset(ms)
Router Remote
-------------------------------------------------------------------------------
chosen GOOG 1 srvr - 64 ....YYYY -236.000
9999 216.239.35.12
===============================================================================
===============================================================================
NTP Clients
===============================================================================
vRouter Time Last Request Rx
Address
-------------------------------------------------------------------------------
===============================================================================
1.1.7 Show router status
Use show router status to verify the status of the protocols enabled on the router:
A:admin@MASTER# show router status
===============================================================================
Router Status (Router: Base)
===============================================================================
Admin State Oper State
-------------------------------------------------------------------------------
Router Up Up
OSPFv2 Not configured Not configured
RIP Not configured Not configured
RIP-NG Not configured Not configured
ISIS-0 Up Up
MPLS Not configured Not configured
P2MP-SR-TREE Not configured Not configured
RSVP Not configured Not configured
LDP Up Up
BGP Up Up
IGMP Not configured Not configured
MLD Not configured Not configured
PIM Not configured Not configured
PIMv4 Not configured Not configured
PIMv6 Not configured Not configured
OSPFv3 Not configured Not configured
MSDP Not configured Not configured
BIER Not configured Not configured
PCE Not configured Not configured
PCC Not configured Not configured
1.2 ISIS
Verify that ISIS adjacencies are established between the nodes and that ISIS routes are learned.
1.2.1 Verify ISIS interfaces
[gl:/configure]
A:admin@MASTER# show router isis interface
===============================================================================
Rtr Base ISIS Instance 0 Interfaces
===============================================================================
Interface Level CircID Oper L1/L2 Metric Type
State
-------------------------------------------------------------------------------
system L2 1 Up -/0 p2p
to_SLAVE L1L2 2 Up 10/10 p2p
-------------------------------------------------------------------------------
Interfaces : 2
===============================================================================
1.2.2 Verify ISIS adjacency
[gl:/configure]
A:admin@MASTER# show router isis adjacency
===============================================================================
Rtr Base ISIS Instance 0 Adjacency
===============================================================================
System ID Usage State Hold Interface MT-ID
-------------------------------------------------------------------------------
SLAVE L2 Up 20 to_SLAVE 0
-------------------------------------------------------------------------------
Adjacencies : 1
===============================================================================
1.2.3 Verify the route table
[gl:/configure]
A:admin@MASTER# show router route-table protocol isis
===============================================================================
Route Table (Router: Base)
===============================================================================
Dest Prefix[Flags] Type Proto Age Pref
Next Hop[Interface Name] Metric
-------------------------------------------------------------------------------
10.0.0.2/32 Remote ISIS 01h25m09s 18
172.99.1.1 10
-------------------------------------------------------------------------------
No. of Routes: 1
Flags: n = Number of times nexthop is repeated
B = BGP backup route available
L = LFA nexthop available
S = Sticky ECMP requested
===============================================================================
1.2.4 Verify the ISIS database
[gl:/configure]
A:admin@MASTER# show router isis database detail
===============================================================================
Rtr Base ISIS Instance 0 Database (detail)
===============================================================================
Displaying Level 1 database
-------------------------------------------------------------------------------
Level (1) LSP Count : 0
Displaying Level 2 database
-------------------------------------------------------------------------------
LSP ID : MASTER.00-00 Level : L2
Sequence : 0xc Checksum : 0xbb77 Lifetime : 800
Version : 1 Pkt Type : 20 Pkt Ver : 1
Attributes: L1L2 Max Area : 3 Alloc Len : 1492
SYS ID : 0100.0000.0001 SysID Len : 6 Used Len : 105
TLVs :
Area Addresses:
Area Address : (3) 49.0001
Supp Protocols:
Protocols : IPv4
IS-Hostname : MASTER
Router ID :
Router ID : 10.0.0.1
I/F Addresses :
I/F Address : 172.99.1.0
I/F Address : 10.0.0.1
TE IS Nbrs :
Nbr : SLAVE.00
Default Metric : 10
Sub TLV Len : 12
IF Addr : 172.99.1.0
Nbr IP : 172.99.1.1
TE IP Reach :
Default Metric : 10
Control Info: , prefLen 31
Prefix : 172.99.1.0
Default Metric : 0
Control Info: , prefLen 32
Prefix : 10.0.0.1
-------------------------------------------------------------------------------
LSP ID : SLAVE.00-00 Level : L2
Sequence : 0xb Checksum : 0x91f0 Lifetime : 702
Version : 1 Pkt Type : 20 Pkt Ver : 1
Attributes: L1L2 Max Area : 3 Alloc Len : 104
SYS ID : 0100.0000.0002 SysID Len : 6 Used Len : 104
TLVs :
Area Addresses:
Area Address : (3) 49.0001
Supp Protocols:
Protocols : IPv4
IS-Hostname : SLAVE
Router ID :
Router ID : 10.0.0.2
I/F Addresses :
I/F Address : 172.99.1.1
I/F Address : 10.0.0.2
TE IS Nbrs :
Nbr : MASTER.00
Default Metric : 10
Sub TLV Len : 12
IF Addr : 172.99.1.1
Nbr IP : 172.99.1.0
TE IP Reach :
Default Metric : 10
Control Info: , prefLen 31
Prefix : 172.99.1.0
Default Metric : 0
Control Info: , prefLen 32
Prefix : 10.0.0.2
Level (2) LSP Count : 2
-------------------------------------------------------------------------------
Control Info : D = Prefix Leaked Down
S = Sub-TLVs Present
Attribute Flags : N = Node Flag
R = Re-advertisement Flag
X = External Prefix Flag
E = Entropy Label Capability (ELC) Flag
Adj-SID Flags : v4/v6 = IPv4 or IPv6 Address-Family
B = Backup Flag
V = Adj-SID carries a value
L = value/index has local significance
S = Set of Adjacencies
P = Persistently allocated
Prefix-SID Flags : R = Re-advertisement Flag
N = Node-SID Flag
nP = no penultimate hop POP
E = Explicit-Null Flag
V = Prefix-SID carries a value
L = value/index has local significance
Lbl-Binding Flags: v4/v6 = IPv4 or IPv6 Address-Family
M = Mirror Context Flag
S = SID/Label Binding flooding
D = Prefix Leaked Down
A = Attached Flag
SABM-flags Flags: R = RSVP-TE
S = SR-TE
F = LFA
X = FLEX-ALGO
FAD-flags Flags: M = Prefix Metric
===============================================================================
1.3 MPLS / LDP
Verify that dynamic LDP sessions are created correctly.
1.3.1 Verify operational LDP interfaces
[gl:/configure]
A:admin@MASTER# show router ldp interface
===============================================================================
LDP Interfaces
===============================================================================
Interface Adm/Opr
Sub-Interface(s) Adm/Opr Hello Hold KA KA Transport
Fctr Time Fctr Time Address
-------------------------------------------------------------------------------
to_SLAVE Up/Up
ipv4 Up/Up 3 15 3 30 System
-------------------------------------------------------------------------------
No. of Interfaces: 1
===============================================================================
1.3.2 Verify IPv4 LDP sessions
[gl:/configure]
A:admin@MASTER# show router ldp session
==============================================================================
LDP IPv4 Sessions
==============================================================================
Peer LDP Id Adj Type State Msg Sent Msg Recv Up Time
------------------------------------------------------------------------------
10.0.0.2:0 Both Established 2429 2602 0d 01:29:40
------------------------------------------------------------------------------
No. of IPv4 Sessions: 1
==============================================================================
===============================================================================
LDP IPv6 Sessions
===============================================================================
Peer LDP Id
Adj Type State Msg Sent Msg Recv Up Time
-------------------------------------------------------------------------------
No Matching Entries Found
===============================================================================