SONIC switches in landscape, document and test links between switches

[ignatov17]

EPIC: #538

As a SCS developer, I want to know how switches are connected and what links and interfaces are configured in landscape so that let me make possible configurations of SONIC swithces.

Tasks:

• [x] investigate links and connections by interfaces in SONIC hardware switches
• [x] update diagram with find links between switches
• [x] test links and interfaces

Working documents:

• https://github.com/SovereignCloudStack/system-landscape/tree/main/hardware

Testing hardware switches in the landscape after installation of all switches and new installed links, as shown in diagram:

• https://github.com/SovereignCloudStack/system-landscape/blob/main/hardware/Network_Setup_Deployment.drawio.png

Definition of Ready:

• [ ] User Story is small enough to be finished within one sprint
• [ ] User Story is clear and understood by the whole team
• [ ] Acceptance criteria are defined
• [ ] Acceptance criteria are clear and understood by the whole team

Definition of Done:

• [ ] All acceptance criteria are met
• [ ] Changes have been reviewed
• [ ] CI tests have run successfully
• [ ] Documentation has been updated
• [ ] Release Notes have been updated

[ignatov17]

Packet loss in communication, when traffic goes trough 1G switches.

Checked configuration of ip's, MAC addresses and arp tables. Routing works. Communication has the same issue for all jump-host <--> 1G switches (u33, u32 and u42) and between 1G switches: packet loss

Can happens because of:

• switch in the middle st-sw1g-r01-u47 (from JH Computers)
• wiring problem, that affected all the links between 1G switches
• duplicated/wrong MAC or IP addresses

[ignatov17]

Issue is due to duplicated MAC adrresses of eth0 and Ethernet0:

root@st01-sw1g-r01-u32:/home/admin# ip link ls eth0 8: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000 link/ether d0:77:ce:2b:3f:c4 brd ff:ff:ff:ff:ff:ff root@st01-sw1g-r01-u32:/home/admin# ip link ls Ethernet0 37: Ethernet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9100 qdisc pfifo_fast master Bridge state UP mode DEFAULT group default qlen 1000 link/ether d0:77:ce:2b:3f:c4 brd ff:ff:ff:ff:ff:ff

[matofeder]

@scoopex could we close this one as all tasks seem to be addressed?