KAGRA Logbook

I started to reorganize the camera network because several problems were found in klog#36575.

Salvaging the core network switch
The core switch of the CAM network at U38 of the N1 rack was unreachable and couldn't find its IP/MAC addresses via ping and arp scans. So I accessed it via console cable physically. Then IP address hadn't been set to this switch.

ICX6610-24P Switch>show ip
     Switch IP address: None
           Subnet mask: None
Default router address: None
   TFTP server address: None
Configuration filename: None
        Image filename: None
                IP MTU: 9216

So I set it as follows and then the core switch became reachable from k1cam* via telnet.

ICX6610-24P Switch>enable
ICX6610-24P Switch#configure terminal
ICX6610-24P Switch(config)#vlan 1
ICX6610-24P Switch(config-vlan-1)#ip address  
ICX6610-24P Switch(config-vlan-1)#exit
ICX6610-24P Switch(config)#write memory
Flash Memory Write (8192 bytes per dot).
Flash to Flash Done.

Reset of IP address for the IOO switch
The camera switch at U19 of IOO0 rack had an IP address but it was inconsistent with CAM network segment and there was no way to access it without using dummy(? or virtual?) IP address setting on k1cam*. So I set it by a same way above. Now that switch is reachable from k1cam* via the CAM network.

Migration trial to 10GbE for the connection between N1 rack and IOO0 rack
Though two Brocade switches are connected via SFP+ modules and OS2 fiber, link speed is 1GbE.

telnet@ICX6610-24P Switch>show media
Port 1/3/1:  Type : 10GE LR 10km (SFP +)
telnet@ICX6610-24P Switch>show interface brief
Port    Link    State   Dupl Speed Trunk Tag Pvid Pri MAC             Name
1/3/1   Up      Forward Full 1G    None  No  1    0   cc4e.24f9.762b

So I checked various switch information one-by-one, then finally I found the license key for enabling 10G link is not activated on the switch at IOO0 rack though it's activated on one at N1 rack.

telnet@ICX6610-24P Switch>show license
License record empty

I could find License packages in the storage at cryo-machine room and tried to create a license file by using transaction keys in the licesen packages. But it cannot be done by my Broadcom account. These transaction keys may be associated to Kokeyama-san's personal account or transaction keys might not be migrated properly when Brocade was merged to Broadcom... Anyway, I'm asking support desk and waiting a response.

Enabling PoE on the switch in N1 rack for TCam test
I understood that it's difficult to enable the 10G link between N1 and IOO0 rack soon. So I enabled PoE on the switch on N1 rack for the test of new TCam with sufficient band width. (Though PoE is enabled on the switch in IOO0 rack, it's not enabled on one in N1 rack probably because GigE cameras are not connected directly to the switch in N1 rack.)

telnet@ICX6610-24P Switch>enable
telnet@ICX6610-24P Switch#configure terminal
telnet@ICX6610-24P Switch(config)#interface ethernet 1/1/24
telnet@ICX6610-24P Switch(config-if-e1000-1/1/24)# inline power

Remaining works
- Reset of the IP addresses of other end-point switches
- Solving license issue for enabling 10G connection
- Elimination of excessive daisy-chaining of network switches