> !!! clear counters по всем сделал
> 1. Загрузка по прерываниям 85%, причин может быть несколько:
> - большое количество пакетов
> - отключен или неправильно настроен cef
> - большое кол-во arp-запросов
> Покажите sh ip int и sh adj.
cisco-nn-analitik-center#sh ip int
FastEthernet0/0 is up, line protocol is up
Internet address is 89.xx.xx.xx/27
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is BlockFromInternet
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP CEF switching is enabled
IP CEF Feature Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is enabled, interface in domain outside
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
FastEthernet0/0.2 is deleted, line protocol is down
Internet protocol processing disabled
FastEthernet0/1 is up, line protocol is up
Internet address is 192.168.3.254/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Secondary address 192.168.104.254/24
Secondary address 192.168.103.254/24
Secondary address 192.168.101.254/24
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Flow switching is enabled
IP CEF switching is enabled
IP CEF Flow Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, Flow cache, CEF, Subint Flow
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is enabled, interface in domain inside
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
NVI0 is up, line protocol is up
Interface is unnumbered. Using address of NVI0 (0.0.0.0)
Broadcast address is 255.255.255.255
MTU is 1514 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is disabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP CEF switching is disabled
IP Null turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Virtual-Access1 is down, line protocol is down
Internet protocol processing disabled
Virtual-Access2 is up, line protocol is up
Internet protocol processing disabled
Virtual-Access3 is down, line protocol is down
Broadcast address is 255.255.255.255
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is enabled
IP Flow switching is disabled
IP CEF switching is enabled
IP CEF Feature Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Loopback1 is up, line protocol is up
Internet protocol processing disabled
Tunnel1 is up, line protocol is up
Interface is unnumbered. Using address of FastEthernet0/1 (192.168.3.254)
Broadcast address is 255.255.255.255
MTU is 1400 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP CEF switching is enabled
IP CEF Feature Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Tunnel100 is up, line protocol is up
Internet address is 10.xx.xx.xx/30
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1400 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP CEF switching is enabled
IP CEF Feature Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
cisco-n-a-c# sh adj
Protocol Interface Address
IP FastEthernet0/1 192.168.3.107(5)
IP FastEthernet0/1 192.168.3.105(5)
IP FastEthernet0/0 89.xx.xx.xx(476)
IP Tunnel1 point2point(869351)
IP FastEthernet0/0 89.xx.xx.xx(5)
IP FastEthernet0/1 192.168.3.100(5)
IP Tunnel100 point2point(4)
IP FastEthernet0/0 88.xx.xx.xx(3) (incomplete)
IP FastEthernet0/1 192.168.3.67(5)
IP FastEthernet0/1 192.168.3.86(5)
IP FastEthernet0/1 192.168.3.49(5)
IP FastEthernet0/1 192.168.3.53(5)
IP FastEthernet0/1 192.168.3.11(5)
IP FastEthernet0/1 192.168.3.10(5)
IP FastEthernet0/1 192.168.3.9(5)
IP FastEthernet0/1 192.168.3.15(5)
IP FastEthernet0/1 192.168.3.13(5)
IP FastEthernet0/1 192.168.3.12(5)
IP FastEthernet0/1 192.168.3.2(5)
IP FastEthernet0/1 192.168.3.1(5)
IP FastEthernet0/1 192.168.3.6(5)
IP FastEthernet0/1 192.168.3.5(5)
IP FastEthernet0/1 192.168.3.27(5)
IP FastEthernet0/1 192.168.3.25(5)
IP FastEthernet0/1 192.168.3.29(5)
IP FastEthernet0/0 192.168.2.22(5)
IP FastEthernet0/1 192.168.3.22(5)
IP FastEthernet0/1 192.168.3.251(9)
IP FastEthernet0/1 192.168.3.252(5)
IP FastEthernet0/1 192.168.3.244(5)
IP FastEthernet0/0 192.11.13.5(5)
> 2. AIM-VPN у вас на борту, видимо, нет, соответственно, шифрованием туннелей у
> вас занимается исключительно процессор. Варианты: упрощать механизмы шифрования.
а как ?
> 3. clear ip traffic и через некоторое время опять sh ip traffic
> | i fra
> как быстро увеличивается счетчик? Возможно, ввиду неверно настроенных туннелей процессор
> занимается еще и сборкой фрагментированных пакетов.
А не увеличивается он. Как сбросил, так до сих пор:
cisco-n-a-c#sh ip traffic | include fra
0 fragmented, 0 fragments, 0 couldn't fragment
> 4. Оч.много дропов на WAN fa0/0. Сделайте на интерфейсе load-interval 30, потом
> раз в минуту см.sh int fa0/0; интересует динамика input rate/output rate.
> Накопите 7-8 мин и еще раз покажите сюда.
Не то чтобы прям раз в минуту, но как то так, интервалы в 1-5 минут:
cisco-n-a-c#show interfaces fa0/0
30 second input rate 652000 bits/sec, 330 packets/sec
30 second output rate 669000 bits/sec, 326 packets/sec
129 unknown protocol drops
30 second input rate 525000 bits/sec, 279 packets/sec
30 second output rate 549000 bits/sec, 277 packets/sec
135 unknown protocol drops
30 second input rate 568000 bits/sec, 268 packets/sec
30 second output rate 905000 bits/sec, 281 packets/sec
140 unknown protocol drops
30 second input rate 481000 bits/sec, 247 packets/sec
30 second output rate 485000 bits/sec, 239 packets/sec
150 unknown protocol drops
30 second input rate 774000 bits/sec, 372 packets/sec
30 second output rate 776000 bits/sec, 369 packets/sec
160 unknown protocol drops
30 second input rate 473000 bits/sec, 236 packets/sec
30 second output rate 477000 bits/sec, 232 packets/sec
169 unknown protocol drops
30 second input rate 494000 bits/sec, 254 packets/sec
30 second output rate 499000 bits/sec, 252 packets/sec
182 unknown protocol drops
30 second input rate 489000 bits/sec, 247 packets/sec
30 second output rate 488000 bits/sec, 242 packets/sec
197 unknown protocol drops
30 second input rate 499000 bits/sec, 259 packets/sec
30 second output rate 525000 bits/sec, 257 packets/sec
211 unknown protocol drops
> Вообще, заявленная пропуская способность 2811 - ~61mbps, но из опыта, это значение
> рекордное и зависит от живущего трафика. Возможно, вы просто уперлись в её пределы.
Ночью с циской все хорошо, наверное надо все это днем проделать.