Crash 512K Internet
Crash 512K Internet
#512K
En relación con el problemón que ha habido con el tamaño de las entradas de prefijos en los routers BGP #512K (pasado 12 agosto), estos son los comandos útiles para ver el tema de las entradas en la TCAM en los routers BGP:
1) Con esto vemos el dimensionado de las entradas:
BGP_sp_mad_C01#sh mls cef maximum-routes FIB TCAM maximum routes :
=======================
Current :-
——-
IPv4 – 768k
MPLS – 32k
IPv6 + IP Multicast – 112k (default)
2) Con esto podemos saber que es lo que está consumiendo actualmente:
BGP_sp_mad_C01#sh mls cef summary
Total routes: 507123
IPv4 unicast routes: 507110
IPv4 Multicast routes: 3
MPLS routes: 1
IPv6 unicast routes: 9
IPv6 multicast routes: 0
EoM routes: 0
3) Con esto podemos averiguar si en algún momento el router ha sobrepasado alguno de los límites configurados en el hardware:
BGP_sp_mad_C01#sh mls cef exception status Current IPv4 FIB exception state = FALSE Current IPv6 FIB exception state = FALSE Current MPLS FIB exception state = FALSE
4) Por último (pero no menos importante), con este comando tenemos información detallada de las capacidades de cada procesadora (con picos de tráfico por tarjeta, etc…):
BGP_sp_mad_C01#sh platform hardware capacity System Resources
PFC operating mode: PFC3CXL
Supervisor redundancy mode: administratively sso, operationally sso
Switching resources: Module Part number Series CEF mode
1 7600-SIP-400 CEF256 CEF
2 7600-SIP-400 CEF256 CEF
3 WS-X6704-10GE CEF720 CEF
4 WS-X6704-10GE CEF720 CEF
5 RSP720-3CXL-GE supervisor CEF
6 RSP720-3CXL-GE supervisor CEF
Power Resources
Power supply redundancy mode: administratively redundant
operationally redundant
System power: 2669W, 0W (0%) inline, 1981W (74%) total allocated
Powered devices: 0 total, 0 Class3, 0 Class2, 0 Class1, 0 Class0, 0 Cisco
Flash/NVRAM Resources
Usage: Module Device Bytes: Total Used %Used
3 dfc#3-bootflash: 32768000 0 0%
4 dfc#4-bootflash: 32768000 0 0%
5 SP sup-bootdisk: 518799360 181633024 35%
5 SP const_nvram: 127212 736 1%
5 SP nvram: 4059328 42536 1%
5 RP bootdisk: 518799360 0 0%
6 slavenvram: 4059328 42536 1%
6 slaveconst_nvram: 127212 736 1%
6 slavesup-bootdisk: 512090112 153755648 30%
6 slavebootdisk: 512090112 0 0%
CPU Resources
CPU utilization: Module 5 seconds 1 minute 5 minutes
3 0% / 0% 0% 0%
4 0% / 0% 0% 0%
5 RP 2% / 1% 7% 7%
5 SP 11% / 4% 17% 16%
6 RP 0% / 0% 0% 0%
6 SP 10% / 3% 13% 11%
Processor memory: Module Bytes: Total Used %Used
3 199560096 44738032 22%
4 199560096 44738036 22%
5 RP 1767501440 703985232 40%
5 SP 697855300 325334884 47%
6 RP 1767501440 224678068 13%
6 SP 670689728 296054500 44%
I/O memory: Module Bytes: Total Used %Used
5 RP 134217728 39163552 29%
5 SP 67108864 34114152 51%
6 RP 134217728 39163552 29%
6 SP 67108864 34114152 51%
EOBC Resources
Module Packets/sec Total packets Dropped packets
3 Rx: 11 8467346 0
Tx: 5 871269 0
4 Rx: 12 8463915 0
Tx: 6 871425 0
5 RP Rx: 81 5595544 0
Tx: 49 4916667 0
5 SP Rx: 23 2867868 0
Tx: 31 3247413 0
6 RP Rx: 0 204837 0
Tx: 0 180449 0
6 SP Rx: 11 624649 0
Tx: 10 493665 0
VLAN Resources
VLANs: 4094 total, 8 VTP, 0 extended, 35 internal, 4051 free
L2 Forwarding Resources
MAC Table usage: Module Collisions Total Used %Used
5 0 98304 29 1%
6 0 98304 29 1%
VPN CAM usage: Total Used %Used
512 0 0%
L3 Forwarding Resources
Module FIB TCAM usage: Total Used %Used
5 72 bits (IPv4, MPLS, EoM) 819200 507165 62%
144 bits (IP mcast, IPv6) 114688 12 1%
detail: Protocol Used %Used
IPv4 507164 62%
MPLS 1 1%
EoM 0 0%
IPv6 9 1%
IPv4 mcast 3 1%
IPv6 mcast 0 0%
Adjacency usage: Total Used %Used
1048576 461 1%
Forwarding engine load:
Module pps peak-pps peak-time
5 526897 616731 12:52:18 Europe/ Wed Aug 13 2014
6 525469 617711 12:52:13 Europe/ Wed Aug 13 2014
Switch Fabric Resources
Bus utilization: current: 1%, peak was 1% at 15:55:24 Europe/ Wed Aug 13 2014
Fabric utilization: Ingress Egress
Module Chanl Speed rate peak rate peak
1 0 20G 0% 5% @03:42 13Aug14 0% 1% @02:27 13Aug14
2 0 20G 1% 4% @13:38 13Aug14 0% 5% @04:03 13Aug14
3 0 20G 2% 5% @09:39 13Aug14 2% 4% @03:07 13Aug14
3 1 20G 3% 13% @15:50 13Aug14 2% 6% @10:52 13Aug14
4 0 20G 1% 2% @11:59 13Aug14 0% 2% @03:12 13Aug14
4 1 20G 1% 4% @10:52 13Aug14 3% 12% @15:50 13Aug14
5 0 20G 1% 2% @02:27 13Aug14 3% 5% @09:36 13Aug14
6 0 8G 2% 6% @09:19 13Aug14 3% 9% @09:36 13Aug14
… vamos, que no tiene desperdicio el comando.