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IPTV Users Failed to Order or Receive Programs After an Upgrade Due to the New Mechanism of UCL Policy Implementation

Publication Date:  2013-09-27 Views:  37 Downloads:  0
Issue Description
After an ME60s were upgraded from V100R005C02B01B to V600R002C02SPC700, multicast services are unavailable and IPTV users failed to receive or order programs.
Networking:
IPTV platform---NE40E---ME60---S9306---Set-top box (STB)
Handling Process

Huawei completed the following steps to diagnose the problem:

1. Checked multicast neighbor status.
The neighbor status was normal, but no multicast table entries were generated.
2. Checked multicast service configurations on the ME60.
A global user control list (UCL) and traffic policy was configured for multicast users. A UCL, which consists more than 6000 access control lists (ACLs), is used to manage feature availability to users.

3. Checked UCL policy implementation in V600R002C02SPC700 and V100R005C02B01B.
In V100R005C02B01B, unicast packets (program ordering) from the user side to the network side is permitted. Unicast packets from the network side to the user side were denied, so users cannot access the Internet through an STB.

The UCL policy was updated according to the release documentation of V600R002C02SPC700. Based on the new policy, unicast packets from the user side to the network side are denied, so program ordering requests were denied. Related description in the Release Notes was incorrect.
Root Cause
Related upgrade guide in the release documentation of V600R002C02SPC700 was incorrect.
Solution
Delete the global traffic filtering policy and set the permit rule of the UCL policy to be effective bi-directionally, so user-side packets can pass the ME60.
Suggestions
When performing a cross-R-version upgrade, do not over-trust documentation.

END