Summary
MX router failed to bring up the connection with non-Juniper optic even though the optic is listed on Juniper Hardware Compatibility Tool.
Scenario
Using a compatible non-Juniper 1G copper transceiver on MX204 router. MX204 can recognize the transceiver but it cannot auto-detect speed to 1G and the link is down on MX204. Switch is using a 1G copper transceiver and it shows connected.
root@mx204> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis FW015 JNP204 [MX204]
Routing Engine 0 BUILTIN BUILTIN RE-S-1600x8
CB 0 REV 44 750-069579 BCDM5140 JNP204 [MX204]
FPC 0 BUILTIN BUILTIN MPC
CPU REV 02 750-066879 CAGC8782 MPC
PIC 0 BUILTIN BUILTIN 4XQSFP28 PIC
PIC 1 BUILTIN BUILTIN 8XSFPP PIC
Xcvr 0 REV 01 740-021309 ADDB7F321823 SFP+-10G-LR
Xcvr 3 |' NON-JNPR EA406284407 SFP-T
Xcvr 7 NON-JNPR EA406284404 SFP-T
PEM 0 REV 04 740-070749 1GG5C210425 JPSU-650W-AC-AO
PEM 1 REV 04 740-070749 1GG5C160910 JPSU-650W-AC-AO
Fan Tray 0 Fan Tray, Front to Back Airflow - AFO
Fan Tray 1 Fan Tray, Front to Back Airflow - AFO
Fan Tray 2 Fan Tray, Front to Back Airflow - AFO
root@mx204> show interfaces xe-0/1/7 brief
Physical interface: xe-0/1/7, Enabled, Physical link is Down
Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
Loopback: None, Source filtering: Disabled, Flow control: Enabled,
Speed Configuration: Auto
Device flags : Present Running Down
Interface flags: Hardware-Down SNMP-Traps Internal: 0x4000
Link flags : None
Logical interface xe-0/1/7.0
Flags: Device-Down SNMP-Traps 0x4004000 Encapsulation: ENET2
inet 10.10.10.1/24
multiservice
On switch end shows up.
switch#sh int et11 status
Port Name Status Vlan Duplex Speed Type Flags Encapsulation
Et11 connected 112 a-full a-1G 1000BASE-T
Solution
Configure static speed 1G on MX204 interface.
set interfaces xe-0/1/7 gigether-options speed 1g
root@mx204> show interfaces xe-0/1/7 brief
Physical interface: xe-0/1/7, Enabled, Physical link is Up
Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
Loopback: None, Source filtering: Disabled, Flow control: Enabled,
Speed Configuration: 1G
Device flags : Present Running
Interface flags: SNMP-Traps Internal: 0x4000
Link flags : None
Logical interface xe-0/1/7.0
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
inet 10.10.10.1/24
multiservice
switch#sh int et11 status
Port Name Status Vlan Duplex Speed Type Flags Encapsulation
Et11 connected 112 a-full a-1G 1000BASE-T
If static speed doesn't work with MTP cable scenario, it requires configuring 10G / 25G / 40G / 100G speed at chassis configuration session.
set chassis fpc 0 pic 0 port 0 speed 100g
set chassis fpc 0 pic 0 port 1 speed 100g
set chassis fpc 0 pic 0 port 2 speed 40g
set chassis fpc 0 pic 0 port 3 speed 40g
set chassis fpc 0 pic 1 port 0 speed 10g
set chassis fpc 0 pic 1 port 1 speed 10g
set chassis fpc 0 pic 1 port 2 speed 10g
set chassis fpc 0 pic 1 port 3 speed 10g
set chassis fpc 0 pic 1 port 4 speed 10g
set chassis fpc 0 pic 1 port 5 speed 10g
set chassis fpc 0 pic 1 port 6 speed 10g
set chassis fpc 0 pic 1 port 7 speed 10g
Please check the platform supports speed/throughput from the Juniper port checker before assigning speed.
After committing the config, FPC should restart by itself.
root@mx204> show chassis fpc pic-status
Slot 0 Online MPC
PIC 0 Ready 4XQSFP28 PIC
PIC 1 Ready 8XSFPP PIC
If it doesn't restart for some reason, we can take it offline and online manually.
request chassis pic fpc-slot 0 pic-slot 0 offline
request chassis pic fpc-slot 0 pic-slot 0 online