During the Rerouting in the ASON Network, the Protection Switching Time May Exceed the Specification Value

Issue Description In the networking scenario with the WSS or WSD board, the protection switching time may exceed the specification value if the optical power is adjusted improperly. For example, in the previous ASON networking, The current route is marked in pink and the NS2 board is configured with SNCP protection. Reset the FIU board,… Read More »


When Users on Base Stations of Different Vendors Attempt to Get Online Through an ATN Device.

Keywords: ATN, ATN 950 Summary: An ATN device function as a DHCP relay agent, and base stations of two vendors are connected to different DHCP servers. A server or firewall discards packets sent by a base station of a specific vendor. As a result, users attached to the base station fail to get online. [Problem Description] Usage scenario: l The… Read More »

Warning of an ARP Entry Dually-Transmitting Failure

Keywords: ATN 950B, ARP entry dually-transmitting failure, mixed VPN solution Summary: A timing sequence error occurs when software performs batch backup on an ATN 950B NE functioning as a CSG running V200R002C00SPC300 or an earlier version. After a master/slave MPU switchover is performed several times, there is a possibility that the ARP entry dually-transmitting function fails. In this case, when network-to-user… Read More »

When Slave Main Control Board Unregistration on an ATN 950B

Keywords: ATN 950B, slave main control board, unregistered Summary: On an ATN 950B equipped with the AND2CXPE/AND2CXPA/AND2CXPB boards, software does not send packets in the defined order, causing communication failures between the master and slave main control boards. As a result, the slave main control board fails to be registered.   [Problem Description] Application scenario: The… Read More »

How to Assemble an IMPI on the MA5620G?

Issue Description Q: When the MA5620G provisions an SIP voice service, terminal users are often registered by shelf ID or by slot ID (such as sip:0/22/3/1/1/hw32303131EF0EC641@ims.zj.chinamobile.com). How are series of symbols like this are assembled? Alarm Information Null Handling Process A: The general format of “sip:0/22/3/1/1/hw32303131EF0EC641@ims.zj.chinamobile.com” is “sip: Channel/Port/Slot/Shelf/Rack/AN-ID@domain”, where Channel is fixed to 0, and Rack is fixed to 1. So variable parameters are only Shelf, Port, Slot, AN-ID and domain. Port indicates the port ID of a subscriber. Slot indicates the slot ID. Shelf indicates the shelf ID. AN-ID indicates the name of an access node and is set by running the raio-anid command. domain indicates the domain name, that is IMS domain name, and is set in the basic attribute home-domain of the SIP interface. Note: In terms of MA5620G, for the versions earlier than V800R305C00B133SPH006, Port, Slot, and Shelf do not indicate actual port ID, slot ID, and shelf ID, but the real ones plus 1; for the versions later than V800R305C00B133SPH006, the actual port ID, slot ID, and shelf ID comprise the IMPI. Root Cause Null Suggestions After the SIP interface is enabled, the device, carrying IMS user private ID (IMPI) information, registers to the IMS regularly. Users can view whether the IMPI assembled by the device meets the requirement by using the DBwin tool. For details of configuration, refer to the MA5620G SIP Voice Service Configuration Procedure.txt.  

Why can not login S5700 after S5700 power on when the software version was upgraded to V200R005C00SPC500?

Issue Description After a customer upgraded the software version to V200R005C00SPC500 and the latest patch V200R005SPH011 from V200R005C00SPC200, he could login S5700 by telnet. Then the S5700 was powered off due to power outage. After he powered on S5700 again, he couldn’t login S5700 by telnet. The topology is simple:   Here are the detail… Read More »