Huawei MA5600 - On the MA5600 T the Line-Rate of ADSL2+ Port Is Not Enough for Watch Two Programs at the same Time

NGN Cases Chapter 2 MA5600T (IP DSLAM) Cases
Confidential Information of Huawei. No Spreading without Permission
28
Fault Type:
ADSL Access Service
Keywords: CPE PADI
Permission
Level:
02Huawei Partners Permission
Phenomenon De
scription:
Topology: CPE ====== MA5600T ======= BAS
Version: V800R002C01B070SP01T
1. Somewhere office's network architecture is RSTP.
2. One of vlan was used to bear of PPPoE service, but sometime discover have 200 PPPoE user will disconn
e
3. After disconnect, the users cannot dial successfully again.
Alarm Informatio
n:
Null
Cause Analysi
s:
1. Discover the user's MAC address "0016-ce5a-7213" was learnt on uplink-port, so I elementary conclude mi
g
2. But after checkout configuration and alarm information that overthrow my above conclusion and I use ACL
t
3. Therewithal we can deduce have some CPE on the user side will forward other CPE's PADI.
4. But checkout the amount of MAC address was learnt on ports is normal, that is because enabled IPTP fun
c
Handling Proces
s:
1. Use command to display system's alarm information, verify did it have topology switchover mark.
display alarm history alarmtime start
2. Use ACL to capture that MAC address "0016-ce5a-7213" on the uplink-port of DSLAM. And then you can l
o
3. Enable anti-macspoofing function on one of DSLAM, and display the mac-bind entries.
dsl-con87-01(config)#display security bind mac
5 0017-3338-36df 0/ 6/27 901 8 35 byEncap pppoe
6 000e-9b6b-49a9 0/ 6/27 901 8 35 byEncap pppoe
8 0017-335b-9d5f 0/ 6/27 901 8 35 byEncap pppoe
9 0016-ce5a-7213 0/ 6/27 901 8 35 byEncap pppoe
10 0017-3334-ae8b 0/ 6/27 901 8 35 byEncap pppoe
14 000e-9bc9-27ef 0/ 6/27 901 8 35 byEncap pppoe
20 0017-332e-99f3 0/ 6/27 901 8 35 byEncap pppoe
32 000e-9bae-669d 0/ 6/27 901 8 35 byEncap pppoe
4. After enable anti-macspoofing function, we can find out under this port will binding 8 mac address very fast.
5. Deactivate this port, problem solved.
Suggestions and
Summary:
1. If mac address of user was learnt on uplink-port, we can figure out that might be cause by presence loop o
r
2.And we can use the specifically of anti-system to make certain which MAC address is legal;
such as PITP function, when PITP was enabled on our DSLAM, so based on principle of PITP function, what
e
t PPPOE (PADI, PADR) but still can learn in LCP negotiation phase.
2.5 On the MA5600T the line-rate of ADSL2+ port is not enough for watch two programs at
the same time
Title:
On the MA5600T the line-rate of ADSL2+ port is not enough for watch two
programs at the same time
ID: SE0000322136
Information
Type :
Troubleshooting Cases Quality Level:
C
Update Time: 2008-03-29 15:51:27
Views: 15
Author: Chandler Young
Product Family:
Broadband Access
Product:
MA5600T MSAN
Fault Type:
BTV Service
Keywords: IPTV ADSL2+
Permission
Level:
Warranty Users Permission
Phenomenon De
Topology: