ZTE OLT initialization


ZTE OLT initial steps

In this post you'll find step by step instructions for initial OLT configuration and for setting up the IP connectivity of the ZTE C300, C320, C350, C220 OLTs. After completing these steps, you'll be ready to connect your OLT to SmartOLT.

For setup instructions of the ZTE C6xx Titan series like C600, C610, C620, C650 or C680 please access this link.

Step one: Connect to the OLT either with Putty telnet using the default IP address or by Serial cable to CL1 or CLI port using the original SERIAL cable with the correct pinout (commonly used values for serial: 9600-8-N-1, 57600-8-N-1 or 115200-8-N-1). Alternatively, if your Mikrotik has a RJ45 CONSOLE port, you can use a LAN cable from this port to the OLT CLI port for a serial connection in a Mikrotik Terminal window.

The factory IP address of any ZTE C3xx OLT is The default username is zte and the password is zte.
Recently the OLTs come from factory without any username defined (you will receive a message "username or password incorrect" by telnet) and in that case you need to use the original Serial cable (or manufacture a cable using the original PINOUT scheme) to define the first username and password.
After login, if the console displays the sign ">" instead of "#" then the "enable" command will be additionally needed to be entered to gain high privilege mode. The default password for "enable" mode is zxr10 .
For connecting by Telnet: Connect an ethernet cable to the dedicated (out-of-band) management port of the OLT. This management port is typically labeled 10/100 or MNG. It is positioned near the CL1 or DIAG port.
The 10/100 port is an isolated port, designed for management purposes only. This port cannot be used to transport the traffic of the customers.
Configure on your PC or on the ethernet port of the Mikrotik where the OLTs' management port is connected the IP address . Verify connectivity by pinging, you should receive replies. Then connect to the OLT.

Connected to
Escape character is '^]'.
Welcome to ZXAN product C320 of ZTE Corporation


Step two: Enable plug-and-play detection of the OLT boards and add the chassis type.

# For C320 OLT

conf t
set-pnp enable
add-rack rackno 1 racktype C320Rack
add-shelf rackno 1 shelfno 1 shelftype C320_SHELF

# For C300 OLT
conf t
set-pnp enable
add-rack rackno 1 racktype IEC19
add-shelf rackno 1 shelfno 1 shelftype IEC_SHELF

Verify the status of the cards using the command: show card
ZXAN# show card
Rack Shelf Slot CfgType RealType Port HardVer SoftVer Status ------------------------------------------------------------------------------- 1 1 2 GTGH GTGHG 16 120700 V1.2.5P3 INSERVICE 1 1 3 SMXA SMXA 3 131201 V1.2.5P3 INSERVICE 1 1 4 SMXA SMXA 3 131201 V1.2.5P3 STANDBY

Step three: Configure a new management IP address on the (out-of-band) mng1 interface:

conf t
interface mng1
ip address [IP] [MASK]

Reconnect to the OLT using the new IP address you assigned.

Add the default gateway and save configuration:
conf t
no ip route
ip route [IP of the GATEWAY]

Step four: Create a dedicated username/password. This user/pass will be used between SmartOLT and your OLT.

conf t
username smartoltusr password (enter a strong password) max-sessions 16 privilege 15

Step five: Enable telnet service, that is usually factory disabled:
conf t
no ssh server only

At this stage, your OLT is ready to be interconnected with SmartOLT system.
Open your smartolt.com site, go to Settings -- OLTs -- Add OLT.
Fill in the fields displayed, and click the Save button.

# Other settings (If you use SmartOLT, these are configured automatically, no need to configure them manually):

conf t
auto-write enable
auto-write 18:00:00 everyday
mib-compatibility iftable v2
ntp server priority 1
ntp server priority 2
ntp enable

# Optional, you can configure an "in-band" IP address on a VLAN interface. This is useful when you want to manage the OLT using the same physical interface that is used for normal traffic of the customers. We do not recommend this scenario because if a loop happens in the ONT, undetected by the ONT/OLT and the uplink port is shutdown by the uplink device as a reaction to the loop, you will lose the IP connectivity with the OLT as well.
conf t
vlan 300
interface vlan300
ip address [IP] [MASK]