Once an incorrect firmware was loaded into one of the OLTs, because of this, it cyclically rebooted.
Continue reading “BDCOM OLT Recovery”Category Archives: Hardware
BDCOM OLT DDM SNMP OID
Once it was necessary to monitor the level of the optical signal to the BDCOM OLT P3310C and P3608-2TE, after the trunk cables of different quality could stretch in the summer, and thus we lost contact with one of the OLT, although this situation could be predicted and prevented.
Continue reading “BDCOM OLT DDM SNMP OID”Configuring DHCP Snooping on Edge-core
Let me give you an example of setting up DHCP Snooping on Edge-core switches, for the test I’ll take the ES3526XA model.
Continue reading “Configuring DHCP Snooping on Edge-core”BDCOM OLT: LLID sequences have been used up on EPON
One day, a technician connected a client and informed me that the ONU is not registering with one of the BDCOM P3608-2TE EPON OLT. I looked at the logs:
Continue reading “BDCOM OLT: LLID sequences have been used up on EPON”Configuring Edge-core ES3526XA
In the test, I’ll configure the Edge-core ES3526XA switch.
Continue reading “Configuring Edge-core ES3526XA”ABillS. SNMP Port Shift
I noticed once that on Huawei switches SNMP port indices can be shifted, for example, on Huawei s2326 VLANs are considered first, for example ifIndex.1 is vlan1, ifIndex.2, ifIndex.3, ifIndex.4 are user VLANs, and then ifIndex5 is the port Ethernet1. Because of this, when binding client services to switch ports in ABillS, the ports will not be displayed correctly.
Continue reading “ABillS. SNMP Port Shift”Blocking DHCP packets on D-Link DES-38xx
Nothing complicated, just create an ACL rule, due to which on certain ports the switch will drop or pass packets that go to client port 67 from a DHCP server and thus it will not receive IP from unnecessary DHCP servers.
Continue reading “Blocking DHCP packets on D-Link DES-38xx”Clearing FDB tables on D-Link DGS-3100 from CRON
In 2013, I came up with a primitive solution to the problem with the D-Link DGS-3100 switch, which with an average load can often stop passing traffic through itself.
Continue reading “Clearing FDB tables on D-Link DGS-3100 from CRON”Deny internet access on Mikrotik
To prohibit Internet access to certain IP addresses on the internal network, you need to click “IP” – “Firewall” in the router settings, add new rules in the “Filter Rules” tab by clicking “Add New” or “+”.
Continue reading “Deny internet access on Mikrotik”Allied Telesis AT-8000S Firmware Update
For example, I’ll update the firmware several times on the Allied Telesis AT-8000S/24 switch.
Continue reading “Allied Telesis AT-8000S Firmware Update”