Hi ngkin,
Thanks for your reply.
all of the switches are directly connected exactly in the way I posted except C9300 being a stack of 2 switches via StackWise:
C9300-BackBone# show switch detail
Switch/Stack Mac Address : cc7f.76c9.c200 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
-------------------------------------------------------------------------------------
*1 Active cc7f.76c9.c200 2 V03 Ready
2 Standby cc7f.76b2.e680 1 V03 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 OK OK 2 2
2 OK OK 1 1
here I will ad what you requested with extra information about the 9300 stack:
C9300:
C9300-BackBone#show etherchannel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
A - formed by Auto LAG
Number of channel-groups in use: 28
Number of aggregators: 28
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) LACP Gi1/1/4(D) Te1/1/7(P) Gi2/1/4(D)
Te2/1/7(P)
2 Po2(SU) LACP Gi1/1/1(D) Gi1/1/2(D) Te1/1/8(P)
Gi2/1/1(D) Gi2/1/2(D) Te2/1/8(P)
3 Po3(SD) -
4 Po4(SD) -
5 Po5(SU) LACP Te1/1/2(P) Te2/1/2(P)
6 Po6(SD) -
7 Po7(SD) -
8 Po8(SD) -
9 Po9(SD) -
11 Po11(SD) -
12 Po12(SD) -
13 Po13(SD) LACP Gi2/0/22(D)
14 Po14(SD) LACP Gi2/0/21(D)
15 Po15(SD) -
16 Po16(SD) -
17 Po17(SD) -
18 Po18(SD) -
20 Po20(SU) LACP Gi1/0/46(D) Te1/1/1(P) Te2/1/1(P)
24 Po24(SU) LACP Gi1/0/3(P) Gi2/0/3(P) Gi2/0/48(D)
25 Po25(SU) LACP Gi1/0/8(P) Gi2/0/8(P)
26 Po26(SU) LACP Gi1/0/37(P) Gi2/0/37(P)
28 Po28(SD) LACP Gi2/0/10(D)
39 Po39(SU) LACP Gi2/0/28(P) Gi2/0/36(P)
40 Po40(SU) LACP Gi1/0/28(P) Gi1/0/36(P)
41 Po41(SU) LACP Gi1/0/27(P) Gi2/0/27(P)
42 Po42(SU) LACP Gi1/0/42(P) Gi2/0/42(P)
48 Po48(SD) LACP Gi1/0/1(D) Gi1/0/2(D) Gi2/0/1(D)
Gi2/0/2(D)
50 Po50(SU) LACP Gi1/1/3(D) Te1/1/3(P) Gi2/1/3(D)
Te2/1/3(P)
C9300-BackBone#show spanning-tree interface port-channel 50 detail
Port 2330 (Port-channel50) of VLAN0101 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 20581, address cc7f.76c9.c200
Designated bridge has priority 20581, address cc7f.76c9.c200
Designated port id is 128.2330, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 2806352, received 2806645
Port 2330 (Port-channel50) of VLAN0134 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 20614, address cc7f.76c9.c200
Designated bridge has priority 20614, address cc7f.76c9.c200
Designated port id is 128.2330, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 695039, received 695115
Port 2330 (Port-channel50) of VLAN0200 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 20680, address cc7f.76c9.c200
Designated bridge has priority 20680, address cc7f.76c9.c200
Designated port id is 128.2330, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 733926, received 734003
Port 2330 (Port-channel50) of VLAN0201 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 20681, address cc7f.76c9.c200
Designated bridge has priority 20681, address cc7f.76c9.c200
Designated port id is 128.2330, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 695039, received 695115
Port 2330 (Port-channel50) of VLAN0250 is root forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 24826, address 8c60.4f37.a041
Designated bridge has priority 24826, address 0023.04ee.be0a
Designated port id is 144.6, designated path cost 0
Timers: message age 16, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 12, received 3359688
Port 2330 (Port-channel50) of VLAN0251 is root forwarding
Port path cost 1, Port priority 128, Port Identifier 128.2330.
Designated root has priority 4347, address 8c60.4f37.a041
Designated bridge has priority 4347, address 0023.04ee.be0a
Designated port id is 144.6, designated path cost 0
Timers: message age 16, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 134, received 3359877
1st Nexus vPC Primary:
Rack_3-10G# show spanning-tree interface port-channel 7 detail
Port 4102 (port-channel7, vPC) of VLAN0101 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32869, address 002a.6ad8.4e3c
Designated bridge has priority 32869, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 2806863, received 0
Port 4102 (port-channel7, vPC) of VLAN0134 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32902, address 002a.6ad8.4e3c
Designated bridge has priority 32902, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 695302, received 0
Port 4102 (port-channel7, vPC) of VLAN0200 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32968, address 002a.6ad8.4e3c
Designated bridge has priority 32968, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 734200, received 0
Port 4102 (port-channel7, vPC) of VLAN0201 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32969, address 002a.6ad8.4e3c
Designated bridge has priority 32969, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 695300, received 0
Port 4102 (port-channel7, vPC) of VLAN0250 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 24826, address 8c60.4f37.a041
Designated bridge has priority 24826, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 3360016, received 0
Port 4102 (port-channel7, vPC) of VLAN0251 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 4347, address 8c60.4f37.a041
Designated bridge has priority 4347, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 3360016, received 3
Port 4102 (port-channel7, vPC) of VLAN0252 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 24828, address 547f.eee9.03fc
Designated bridge has priority 24828, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 3360015, received 0
Port 4102 (port-channel7, vPC) of VLAN0253 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 20733, address 8c60.4f37.a041
Designated bridge has priority 20733, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 3360015, received 0
Port 4102 (port-channel7, vPC) of VLAN1105 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 33873, address 002a.6ad8.4e3c
Designated bridge has priority 33873, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 734200, received 0
Port 4102 (port-channel7, vPC) of VLAN1150 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 33918, address 002a.6ad8.4e3c
Designated bridge has priority 33918, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 695301, received 0
1st Nexus vPC Secondary:
Rack_4-10G-2# show spanning-tree interface port-channel 7 detail
Port 4102 (port-channel7, vPC) of VLAN0101 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32869, address 8c60.4f37.a041
Designated bridge has priority 32869, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0134 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32902, address 002a.6ad8.4e3c
Designated bridge has priority 32902, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0200 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32968, address 002a.6ad8.4e3c
Designated bridge has priority 32968, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0201 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 32969, address 002a.6ad8.4e3c
Designated bridge has priority 32969, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0250 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 24826, address 8c60.4f37.a041
Designated bridge has priority 24826, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0251 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 4347, address 8c60.4f37.a041
Designated bridge has priority 4347, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0252 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 24828, address 547f.eee9.03fc
Designated bridge has priority 24828, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN0253 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 20733, address 8c60.4f37.a041
Designated bridge has priority 20733, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN1105 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 33873, address 002a.6ad8.4e3c
Designated bridge has priority 33873, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
Port 4102 (port-channel7, vPC) of VLAN1150 is designated forwarding
Port path cost 1, Port priority 128, Port Identifier 128.4102
Designated root has priority 33918, address 002a.6ad8.4e3c
Designated bridge has priority 33918, address 8c60.4f37.a041
Designated port id is 128.4102, designated path cost 1
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 0, received 0
It looks very odd that our nexus just ignore those BPDU's like they are not compatible with each other which I asummed before (and I didn't had time to SPAN that interface yet) , but LINK TYPE is displayed as P2P anyway so its very unlikely that the Nexus vPC thing that PO7 is an egde TYPE.
