I wonder whether you have only one PVC between two points If I am right, the priority is set by provider that FR-Net will delever your data with priority according to DLCI number, which was set and assign to you. The primary DLCI is a actual DLCI assign to your PVC and the others are only use for FR-Switch to determine that which one (data) will be higher priority so that it could be delevered even if network congestion. So, you have to config your DLCIs exactly as the provider told you and the primary DLCI is nedded for your PVC, it down mean your PVC down or in other word, you loss all your traffic. MNThanh Support Division Vietnam Datacommunication Company (VDC)
ericbrouwers wrote: >Srivathsan, > >I think you're right. Is also suggested by this note in >http://www.cisco.com/warp/public/125/12.html#topic8. >"Note: Make sure you configure the DLCIs to correspond with the priority >list, or the system will not use the correct queue." > >The primary DLCI is linked to the subinterface. The secondary DLCIs are also >implicit linked to this subinterface in the example below. > >interface Serial0.1 point-to-point > ip address 4.0.1.1 255.255.255.0 > frame-relay priority-dlci-group 1 140 180 190 200 > frame-relay interface-dlci 140 > >So if you lose your primary DLCI (your subinterface), you also lose all >other traffic on the secondary DLCIs. > >Eric > > >----- Original Message ----- >From: "Srivathsan Ananthachari" >To: "ericbrouwers" >Cc: >Sent: Friday, June 27, 2003 1:14 PM >Subject: RE: DLCI Prioritization [7:71428] > > >Does that mean that if I want my primary DLCI ( for whatever reasons ) >to belong to some other priority queue other priority than high ..then >it's not possible . This is coz it's the first dlci mentioned in the >frame-relay priority-dlci-group command ( in the interface / >subinterface configuration mode )that's always the primary . > >I quote the following from the cisco site.. >" >Implementation Considerations > >When implementing DLCI prioritization, please note the following points: > > >If a secondary DLCI goes down, you lose traffic destined for that queue >only. > >If you lose the primary DLCI, the subinterface goes down and you lose >all traffic. > >" > >What does the second point mean...?? > >Thanks >Srivathsan > >-----Original Message----- >From: ericbrouwers [mailto:[EMAIL PROTECTED] >Sent: Friday, June 27, 2003 4:36 PM >To: Srivathsan Ananthachari >Subject: Re: DLCI Prioritization [7:71428] > > >Primary DLCI is the first DLCI in the command: > >frame-relay priority-dlci-group group-number high-dlci medium-dlci >normal-dlci low-dlci > >This command is applied at the interface or subinterface level. >Restriction: this command should not be used on a main interface or >point-to-point subinterface, where only a single DLCI is configured. > >Here's an example at interface level, from doc. CD: >http://127.0.0.1:8080/cc/td/doc/product/software/ios122/122cgcr/fwan_r/f >rcmd >s/wrffr3.htm#xtocid16 > >interface serial 1 > ip address 172.21.177.1 255.255.255.0 > encapsulation frame-relay > frame-relay priority-dlci-group 1 40 50 > frame-relay map ip 172.21.177.2 40 broadcast > >Check this link for an example at subinterface level: > >http://www.cisco.com/warp/public/125/12.html#topic8 > >In this sample config ICMP traffic is assigned to the highest DLCI: > >interface Serial0 > no ip address > encapsulation frame-relay > priority-group 1 >! >interface Serial0.1 point-to-point > ip address 4.0.1.1 255.255.255.0 > frame-relay priority-dlci-group 1 140 180 190 200 > frame-relay interface-dlci 140 >! >access-list 102 permit icmp any any > priority-list 1 protocol ip high list 102 > priority-list 1 protocol ip medium tcp telnet > priority-list 1 protocol ip normal tcp ftp > priority-list 1 protocol ip low > >I'm not familiar with it, just copied it from the URLs, > >Eric Brouwers > > >----- Original Message ----- >From: "Srivathsan Ananthachari" >To: >Sent: Thursday, June 26, 2003 11:10 AM >Subject: DLCI Prioritization [7:71428] > > > > >>In DLCI Prioritization , what's a primary DLCI , is it the dlci >>specified in the >> >>frame-relay interface dlci command >> >>( is it XX ) ?? >> >>Can you create priority-dlci-group in a physical interface ( major >>interface like serial 0 for eg., I understand it can be done in a >>sub-interface )..?? >> >>/Srivathsan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71620&t=71428 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
