Hello,
I'm facing an issue on interconnexion between nexus switchs and juniper switchs. My task is to create 2 links as a port-channel 2G between site A and B.
- On site A, I have 2 Cisco nexus 93180YC stacked.
- On site B, I have 2 Juniper EX4200 switches configured as virtual-chassis (=stacked).
On site A, on one Cisco Nexus, i have error on vPC status :
nexus-A# sh vpc 13
vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
13 Po13 down* success success -
!
nexus-A# sh int eth 1/13
Ethernet1/13 is down (Link not connected)
admin state is up, Dedicated Interface
Belongs to Po13
Hardware: 100/1000/10000/25000 Ethernet, address: 00de.fbfb.5394 (bia 00de.fbfb.5394)
Description: V > Juniper
MTU 9000 bytes, BW 25000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
auto-duplex, auto-speed, media type is 1G
Beacon is turned off
Auto-Negotiation is turned on FEC mode is Auto
Input flow-control is off, output flow-control is off
Auto-mdix is turned off
Rate mode is dedicated
!
nexus-A# sh lacp interface eth 1/13
Interface Ethernet1/13 is invalid
Channel group is 0 port channel is
PDUs sent: 0
PDUs rcvd: 0
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(0, 0-0-0-0-0-0, 0, 0, 0), (0, 0-0-0-0-0-0, 0, 0, 0)] ]
Operational as aggregated link since Thu Jan 1 01:00:00 1970
Local Port: Eth1/13 MAC Address= 0-de-fb-fb-53-87
System Identifier=0x8000, Port Identifier=0x8000,0x0
Operational key=0
LACP_Activity=passive
LACP_Timeout=Long Timeout (30s)
Synchronization=NOT_IN_SYNC
Collecting=false
Distributing=false
Partner information refresh timeout=Long Timeout (90s)
Actor Admin State=0
Actor Oper State=0
Neighbor: 0x0
MAC Address= 0-0-0-0-0-0
System Identifier=0x0, Port Identifier=0x0,0x0
Operational key=0
LACP_Activity=unknown
LACP_Timeout=Long Timeout (30s)
Synchronization=NOT_IN_SYNC
Collecting=false
Distributing=false
Partner Admin State=0
Partner Oper State=0
Aggregate or Individual(True=1)= 2
!
nexus-A# show int eth 1/13 transceiver det
Ethernet1/13
transceiver is present
type is 1000base-LH
name is CISCO
part number is FTLF1318P3BTL-C1
revision is A
serial number is FNS19280MKX
nominal bitrate is 1300 MBit/sec
Link length supported for 9/125um fiber is 10 km
cisco id is 3
cisco extended id number is 4
cisco part number is 10-2625-01
cisco product id is GLC-LH-SMD
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 35.66 C 90.00 C -10.00 C 85.00 C -5.00 C
Voltage 3.31 V 3.59 V 3.00 V 3.50 V 3.09 V
Current 21.54 mA 65.00 mA 1.00 mA 55.00 mA 3.00 mA
Tx Power -5.54 dBm 0.99 dBm -13.56 dBm -3.00 dBm -9.50 dBm
Rx Power -4.34 dBm 0.99 dBm -23.01 dBm -3.00 dBm -19.20 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
!
On the second Cisco Nexus, link is UP, vPC is UP.
nexus-B# sh vpc 13
vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
13 Po13 up success success 252,455,915
!
On both Cisco nexus, configuration is exactly the same and is simple.
Switch A and B :
nexus-B# sh run int eth 1/13
!Command: show running-config interface Ethernet1/13
!Time: Mon Jun 14 14:48:12 2021
version 7.0(3)I7(5a) Bios:version 05.31
interface Ethernet1/13
description V > Juniper EX4200
switchport
switchport mode trunk
switchport trunk native vlan 999
switchport trunk allowed vlan 252,455,915
mtu 9000
channel-group 13 mode active
no shutdown
!
nexus-B# sh run int po 13
!Command: show running-config interface port-channel13
!Time: Mon Jun 14 14:49:23 2021
version 7.0(3)I7(5a) Bios:version 05.31
interface port-channel13
description PO> Juniper EX4200
switchport
switchport mode trunk
switchport trunk native vlan 999
switchport trunk allowed vlan 252,455,915
mtu 9000
vpc 13
!
On site B, Juniper configs are like this :
Juniper> show configuration | display set | match ge-0/1/0
set interfaces ge-0/1/0 description "TK> To nexus-A"
set interfaces ge-0/1/0 ether-options 802.3ad ae0
!
Juniper> show configuration | display set | match ge-1/1/0
set interfaces ge-1/1/0 description "TK> To nexus-B"
set interfaces ge-1/1/0 ether-options 802.3ad ae0
!
Juniper> show configuration | display set | match ae
set interfaces ge-0/1/0 ether-options 802.3ad ae0
set interfaces ge-1/1/0 ether-options 802.3ad ae0
set interfaces ae0 description "T > Cisco Nexus"
set interfaces ae0 aggregated-ether-options minimum-links 1
set interfaces ae0 aggregated-ether-options link-speed 1g
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 unit 0 family ethernet-switching port-mode trunk
set interfaces ae0 unit 0 family ethernet-switching vlan members v455
set interfaces ae0 unit 0 family ethernet-switching vlan members v915
set interfaces ae0 unit 0 family ethernet-switching vlan members v252
set interfaces ae0 unit 0 family ethernet-switching vlan members v456
!
Summary : On switch nexus-A, Rx power on port is correct. I think i have logical issue (maybe on config or missing parameter) because I do not receive any PDU from juniper, PO13 is in NoOperMem status and port Eth1/13 is in NotConnected status.
Nevertheless, on the other endpoint juniper, port is UP and receive good signal too. To check the default link, I have configured cisco port and juniper port with IP adresses. I confirm that ping test was successful, meaning that there is no issue with SFPs, ports and fiber cables.
Do you have any explanation on this behavier and a solution to resolve this ?
Thank for help !
Philippe AN
