Hi Davide
sh lacp
no LACP ports found.
Stack-2920-H0# sh trunks
Load Balancing Method: L3-based (default)
Port | Name Type | Group Type
------ + -------------------------------- ---------- + ----- --------
1/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
2/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
Stack-2920-H4# sh trunks
Load Balancing Method: L3-based (default)
Port | Name Type | Group Type
------ + -------------------------------- ---------- + ----- --------
1/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
2/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
Interface Configuration on Stack-2920-H0
interface 1/B1
name "Uplink zu Stack-2920-H4"
untagged vlan 1
trunk trk1 trunk
exit
interface 2/B1
name "Uplink zu Stack-2920-H4"
untagged vlan 1
trunk trk1 trunk
exit
Interface Configuration on Stack-2920-H4
interface 1/A1
name "Uplink zu Stack-2920-H0"
untagged vlan 1
trunk trk1 trunk
exit
interface 2/A1
name "Uplink zu Stack-2920-H0"
untagged vlan 1
trunk trk1 trunk
exit
Transceiver Technical Information: Stack-2920-H0
1/B1 | SFP+SR | J9150A | RPDHXPS1444 | 1990-3878
2/B1 | SFP+SR | J9150A | RPDHXPS1440 | 1990-3878
Transceiver Technical Information: Stack-2920-H4
1/A1 | SFP+SR | J9150A | MY60FFD4YY | 1990-4175
2/A1 | SFP+SR | J9150A | MY60FFD5HN | 1990-4175
Stack-2920-H0# sh trunks
Load Balancing Method: L3-based (default)
Port | Name Type | Group Type
------ + -------------------------------- ---------- + ----- --------
1/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
2/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
Stack-2920-H4# sh trunks
Load Balancing Method: L3-based (default)
Port | Name Type | Group Type
------ + -------------------------------- ---------- + ----- --------
1/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
2/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
Stack-2920-H0# sh ver
Image stamp: /ws/swbuildm/rel_tacoma_qaoff/code/build/anm(swbuildm_rel_tacoma_qaoff_rel_tacoma)
Jul 5 2017 20:52:38
WB.16.03.0005
246
Boot Image: Primary
Boot ROM Version: WB.16.03
Active Boot ROM: Primary
Stack-2920-H4# sh ver
Image stamp: /ws/swbuildm/rel_tacoma_qaoff/code/build/anm(swbuildm_rel_tacoma_qaoff_rel_tacoma)
Jul 5 2017 20:52:38
WB.16.03.0005
246
Boot Image: Primary
Boot ROM Version: WB.16.03
Active Boot ROM: Primary
STP:
RSTP ist configured. Both Trunks are in Forwarding Mode
we don't know how long the problem has existed as it was never noticed until a switch failed
Thomas Rebenstorf
------------------------------
Thomas Rebenstorf
------------------------------
Original Message:
Sent: Nov 15, 2021 02:10 AM
From: Davide Poletto
Subject: HP 2920 2-port 10GbE SFP+ Module
Hi Thomas, can you post the outputs of show lacp (although we see the Port Trunk was configured as type "trunk" and not as type "lacp" so it is "Non Protocol" compared to type "lacp" which is controlled by LACP) and show trunks on both Aruba 2920 Stacks?
What's about posting both sections of the running configs specifically showing how the involved interfaces (1/A1 and 2/A1 on first Stack and 1/B1 and 2/B1 on the second Stack) were set? and what's about STP (it should not kick in since you should have well formed Port Trunks on both ends).
Also, what are the outputs of show tech transceivers on both Stacks?
Edit 1: what ArubaOS-Switch software versions are running on both Stacks?
Edit 2: I suggest you to change your Port Trunking mode from type "trunk" to type "lacp" on both ends at your earliest convenience.
------------------------------
Davide Poletto
Original Message:
Sent: Nov 15, 2021 01:56 AM
From: Thomas Rebenstorf
Subject: HP 2920 2-port 10GbE SFP+ Module
Hello,
we have 2 2920 Switch in a Stack. Both have 2 HP 2920 2-port 10GbE SFP+ Module with 10G SFP+ SR.
Port 1/a1 and 2/a1 are in a Trunk to connect to the second 2920 Stack.
Both Ports are up and seen under LLDP
1/A1 | 9c dc 71 7b 3c 0b 51 1/B1 Stack-2920-H0
2/A1 | 9c dc 71 7b 3c 0b 103 2/B1 Stack-2920-H0
Both Ports are up:
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
1/A1-Trk1 SFP+SR | No No Up 10GigFD NA off 0
2/A1-Trk1 SFP+SR | No Yes Up 10GigFD NA off 0
but as you see, the Port 1/a1 is no Enabled.
In the config the port settings are correct and the port isn`t disabled
interface 1/A1
name "Uplink zu Stack-2920-H0"
untagged vlan 1
trunk trk1 trunk
exit
I have change the 10G SFP but the problem persists, so the 10G SPF seems not the Problem.
Is this a Software Problem or is the HP 2920 2-port 10GbE SFP+ Module defect?
Regards
Thomas Rebenstorf
------------------------------
Thomas Rebenstorf
------------------------------