Hi,
I am trying to establish EBGP peering neighbourship from my two (Nexus9000 C9300v Chassis) on VPC with my Next hop which is Cisco Switch Catalyst.
But from Cisco Switch Catalyst side state showing active, but from Nexus9000 it is idle.
Below are the config from Nexus9000 :
1. version nxos.9.3.8
2. 2 Nexus Switches
3. We are running VPC between 2 switches Nexus
Cisco Switch Catalyst physically connected via a vPC
4.
Fusion_N7K1# show running-config vpc
!Command: show running-config vpc
!Running configuration last done at: Mon Aug 30 15:22:41 2021
!Time: Mon Aug 30 15:35:24 2021
version 9.3(8) Bios:version
feature vpc
vpc domain 20
peer-keepalive destination 10.10.10.2 source 10.10.10.1 vrf keepalive
peer-gateway
layer3 peer-router
interface port-channel20
vpc peer-link
interface port-channel98
vpc 98
interface port-channel99
vpc 99
interface Vlan3003
description vrf interface to External router
no shutdown
no ip redirects
ip address 10.102.100.10/30
no ipv6 redirects
!
interface Ethernet1/4
description ***To_Border_1***
switchport mode trunk
switchport trunk native vlan 923
switchport trunk allowed vlan 3003-3004
channel-group 99 mode active
!
interface port-channel99
description ***To_Border_1***
switchport mode trunk
switchport trunk native vlan 923
switchport trunk allowed vlan 3003-3004
vpc 99
!
BGP
Fusion_N7K1# show running-config | section bgp
feature bgp
router bgp 65003
dynamic-med-interval 60
router-id 1.1.1.1
address-family ipv4 unicast
network 10.102.100.8/30
neighbor 10.102.100.9
remote-as 65001
update-source Vlan3003
disable-connected-check
ebgp-multihop 2
address-family ipv4 unicast
weight 65535
advertisement-interval 1
Below are the debug messages from Nexus. Can you spport.
Fusion_N7K1# show ip bgp summary
BGP summary information for VRF default, address family IPv4 Unicast
BGP router identifier 1.1.1.1, local AS number 65003
BGP table version is 4, IPv4 Unicast config peers 1, capable peers 0
1 network entries and 1 paths using 244 bytes of memory
BGP attribute entries [1/172], BGP AS path entries [0/0]
BGP community entries [0/0], BGP clusterlist entries [0/0]
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.102.100.9 4 65001 0 0 0 0 0 06:08:01 Idle
Fusion_N7K1# 2021 Aug 30 15:14:24.491621 bgp: [28997] (default) EVT: 10.102.100.9 remote iod 76 resolving l3 addr
2021 Aug 30 15:14:24.492005 bgp: [28997] (default) EVT: 10.102.100.9 peer connection retry timer expired
2021 Aug 30 15:14:24.493474 bgp: [28997] (default) EVT: 10.102.100.9 Triggered active open for peer
2021 Aug 30 15:14:24.498424 bgp: [28997] (default) EVT: 10.102.100.9 went from Idle to Active (Active setup)
2021 Aug 30 15:14:24.498982 bgp: [28997] (default) EVT: 10.102.100.9 Schedule wait for connect
2021 Aug 30 15:14:24.499009 bgp: [28997] (default) EVT: 10.102.100.9 Wait (30 sec) for session setup response
2021 Aug 30 15:14:27.514313 bgp: [28997] (default) EVT: 10.102.100.9 connect to peer is successful
2021 Aug 30 15:14:27.514348 bgp: [28997] (default) EVT: 10.102.100.9 sending OPEN message to peer
2021 Aug 30 15:14:27.515257 bgp: [28997] (default) EVT: PARTIALWRITE: OPEN to 10.102.100.9 wanted to write 76 bytes, only -1 written: No route to host
2021 Aug 30 15:14:27.515276 bgp: [28997] (default) EVT: 10.102.100.9 cleaning up active peer setup, thread id 0x0
Fusion_N7K1# show vpc consistency-parameters global
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
STP MST Simulate PVST 1 Enabled Enabled
STP Port Type, Edge 1 Normal, Disabled, Normal, Disabled,
BPDUFilter, Edge BPDUGuard Disabled Disabled
STP MST Region Name 1 "" ""
STP Disabled 1 None None
STP Mode 1 Rapid-PVST Rapid-PVST
STP Bridge Assurance 1 Enabled Enabled
STP Loopguard 1 Disabled Disabled
STP MST Region Instance to 1
VLAN Mapping
STP MST Region Revision 1 0 0
Interface-vlan admin up 2 98-99,3003-3004, 98-99,3001-3002,
3007-3008 3005-3006
Interface-vlan routing 2 1,98-99,3003-3004, 1,98-99,3001-3002,
capability 3007-3008 3005-3006
VTP password 2 -
VTP pruning status 2 - Disabled
VTP version 2 - 1
VTP mode 2 - Transparent
VTP domain 2 -
Xconnect Vlans 1
QoS (Cos) 2 ([0-7], [], [], [], ([0-7], [], [], [],
[], [], [], []) [], [], [], [])
Network QoS (MTU) 2 (1500, 1500, 1500, (1500, 1500, 1500,
1500, 0, 0, 0, 0) 1500, 0, 0, 0, 0)
Network Qos (Pause: 2 (F, F, F, F, F, F, F, (F, F, F, F, F, F, F,
T->Enabled, F->Disabled) F) F)
Input Queuing (Bandwidth) 2 (0, 0, 0, 0, 0, 0, 0, (0, 0, 0, 0, 0, 0, 0,
0) 0)
Input Queuing (Absolute 2 (F, F, F, F, F, F, F, (F, F, F, F, F, F, F,
Priority: T->Enabled, F) F)
F->Disabled)
Output Queuing (Bandwidth 2 (100, 0, 0, 0, 0, 0, (100, 0, 0, 0, 0, 0,
Remaining) 0, 0) 0, 0)
Output Queuing (Absolute 2 (F, F, F, T, F, F, F, (F, F, F, T, F, F, F,
Priority: T->Enabled, F) F)
F->Disabled)
Allowed VLANs - 1,98-99,3001-3008 1,98-99,3001-3008
Local suspended VLANs - - -
Fusion_N7K1#
