Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

Managing memory and CPU usage 2ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ffb3 fa 00 00 00 00 00 04-00 00 00 00 00 11 81 00. . .Prev Buf Dataprev_bufptr = 0x2955000 prev_payload = 0x2955030 prev_sig_ptr = 0x29557fc prev_sig= 0x1234eeee prev_pid = 3 len = 1968Prev Buf Alloc Stack:Prev Buf Data:00 00 00 00 00 04 00 00-00 00 00 11 81 00 00 0a0a 00 73 6e ff ff ff ff-ff ff 00 29 ff ff ff ffff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ffad 4c 0f 16 00 00 4b 16-00 00 00 00 00 04 81 0000 0a 0a 00 36 ba 00 00-00 00 00 00 00 00 00 00. . .next_bufptr = 0x29560000 next_payload = -x2956032 next_sig_ptr = -x29567fcnext_sig = 0x1234eeee next_pid = 3 len = 88Next Buf Alloc Stack:Next Buf Data:00 00 00 00 00 04 00 00-00 00 00 11 81 00 00 0a0a 00 d9 d6 ff ff ff ff-ff ff 00 33 ff ff ff ffff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff35 95 00 00 00 00 00 04-00 00 00 00 00 11 81 00. . .Info for non-cpu overflow:Bufptr = NULLpre_bufptr = NULLnext_bufptr = NULLInfo for DABR hit:bufptr = 0x2955800 payload = 0x2955810 sig_ptr = 0x2955ffc sig = 0x123 pid = 3len = 1500 ref = 0 appl_ref = 0 pri = 0 flags = 0x0Configuration notesSeveral things can affect the memory in the Brocade NetIron XMR and Brocade MLX series device:• When you change the table size for a parameter, device memory is reconfigured. Whenmemory is reconfigured, you must save the change to the startup configuration file, and thenreload the software for the change to take effect.• Because Border Gateway Protocol version 4 (BGP4) can handle a very large number of routes,it requires a great deal of memory. In a typical configuration with a single BGP4 neighbor, aBGP4 router may need to hold up to 150,000 routes. Many configurations, especially thoseinvolving more than one neighbor, can require the router to hold even more routes. BrocadeNetIron XMR and Brocade MLX series devices provide dynamic memory allocation for BGP4data by automatically allocating memory when needed to support BGP4 neighbors, routes, androute attribute entries. Dynamic memory allocation is performed automatically by the softwareand does not require a reload.• As a guideline, the Brocade NetIron XMR and Brocade MLX series devices with a 2-GBmanagement module can accommodate 150 to 200 neighbors, with the assumption that thedevice receives a total of about one million routes from all neighbors and sends a total of abouteight million routes to neighbors. For each additional one million incoming routes, the capacityfor outgoing routes decreases by about two million.Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 2353-1002426-02