[c-nsp] 7206 VXR - catalyst 2950 dot1q Trunk hangs !!

[Danny]

Hai cisco NSP users 

I have a peculiar problem with my  7206VXR (NPE300) processor with 229376K/65536K bytes of memory running 12.0(30)S1

It has a  (Fast-ethernet (TX-ISL) port adapter, 1 port)  The FE port port is connected to a 2950 with 12.1(20)EA1a on trunk 



7206  Fa 2/0 ----------Trunk ----------- catalyst  2950   ----Access VLAN 20------- Customer A
                                                               |
Fa 2/0.10  ( Customer A GW)                        | Access Vlan 10
Fa2/0.20  ( Customer B GW)                         |   
                                                            Customer B        


I am given our internet BW on ethernet to my customers using VLAN dot1q access  on switch  and creating subinterface dot1q on 7206 ethernet port 


My Problem : The trunk link between 7206 and 2950 hangs sometime .... Link is up , Traffic  does not move no ping . Memory normal , CPU okay . when I give shut & no shut The link starts to responds .

I had same problem with 2920 instead of 2950 ... Problem does not seem to resolve 

anyone experienced same ????????????? Pls help 


Rgds

Danny 
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