我在我的 Cisco 892 路由器上获得了非常接近千兆的速度。LAN 速度很好（750-800Mbps），但 WAN 速度很糟糕。我有一个 PPPoE 连接，在进行速度测试时，路由器的 CPU 在进行测试时，我的平均最大速度为 360-370Mbps。
Running config:
Building configuration...
Current configuration : 5253 bytes
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! Last configuration change at 15:35:01 GMT Sun Aug 12 2018 by admin
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version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
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hostname HomeRouter
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boot-start-marker
boot-end-marker
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no aaa new-model
clock timezone GMT 3 0
clock summer-time GMT recurring
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crypto pki trustpoint TP-self-signed-2201272373
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2201272373
revocation-check none
rsakeypair TP-self-signed-2201272373
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crypto pki certificate chain TP-self-signed-2201272373
certificate self-signed 01
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ip dhcp excluded-address 192.168.1.1 192.168.1.14
ip dhcp excluded-address 192.168.1.5
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ip dhcp pool clienti_LAN
import all
network 192.168.1.0 255.255.255.0
domain-name acasa.local
dns-server 1.1.1.1 1.0.0.1
default-router 192.168.1.5
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ip dhcp pool pc_main
host 192.168.1.77 255.255.255.0
client-identifier 01d0.17c2.9ba5.36
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ip dhcp pool ciscoap
host 192.168.1.6 255.255.255.0
client-identifier 0138.90a5.1970.00
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no ip domain lookup
ip domain name acasa.local
ip cef
no ipv6 cef
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multilink bundle-name authenticated
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cts logging verbose
license udi pid C892FSP-K9 sn FCZ191494LJ
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ip ssh authentication-retries 2
ip ssh version 2
zone security in-zone
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interface GigabitEthernet0
no ip address
speed 1000
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interface GigabitEthernet1
no ip address
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interface GigabitEthernet2
no ip address
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interface GigabitEthernet3
no ip address
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interface GigabitEthernet4
no ip address
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interface GigabitEthernet5
no ip address
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interface GigabitEthernet6
no ip address
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interface GigabitEthernet7
no ip address
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interface GigabitEthernet8
no ip address
shutdown
duplex auto
speed auto
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interface GigabitEthernet9
description RDSWAN
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip tcp adjust-mss 1452
duplex auto
speed auto
pppoe enable group global
pppoe-client dial-pool-number 1
no cdp enable
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interface Vlan1
description LAN
ip address 192.168.1.5 255.255.255.0
ip nat inside
ip virtual-reassembly in
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interface Dialer1
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 1
dialer idle-timeout 0
dialer load-threshold 1 either
dialer persistent
dialer-group 1
ppp pap sent-username XXXXXXXXXX password 0 XXXXXXXXXXXXX
ppp ipcp dns request accept
ppp ipcp route default
ppp ipcp address accept
no cdp enable
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ip forward-protocol nd
ip http server
ip http secure-server
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ip nat inside source list 100 interface Dialer1 overload
ip nat inside source static tcp 192.168.1.77 80 interface Dialer1 80
ip nat inside source static tcp 192.168.1.77 8080 interface Dialer1 8080
ip nat inside source static tcp 192.168.1.77 25564 interface Dialer1 25566
ip nat inside source static tcp 192.168.1.77 3306 interface Dialer1 3306
ip nat inside source static udp 192.168.1.77 7 interface Dialer1 9
ip nat inside source static tcp 192.168.1.77 27000 interface Dialer1 27021
ip nat inside source static udp 192.168.1.77 27000 interface Dialer1 27021
ip nat inside source static tcp 192.168.1.77 3389 interface Dialer1 3389
ip route 0.0.0.0 0.0.0.0 Dialer1
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access-list 100 permit ip 192.168.1.0 0.0.0.255 any
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control-plane
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mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
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mgcp profile default
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line con 0
logging synchronous
login local
no modem enable
line aux 0
line vty 0 4
session-timeout 5
login local
transport preferred ssh
transport input ssh
line vty 5 15
session-timeout 5
login local
transport preferred ssh
transport input ssh
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scheduler allocate 20000 1000
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end
进行速度测试工具时：
HomeRouter#show processes cpu sorted
CPU utilization for five seconds: 97%/94%; one minute: 20%; five minutes: 15%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
93 32624 7344 4442 1.60% 1.76% 1.67% 0 c800_dx_mrvl_sta
2 352 166 2120 0.40% 0.06% 0.04% 0 Load Meter
15 1740 2173 800 0.40% 0.09% 0.10% 10 SSH Process
97 432 100499 4 0.16% 0.11% 0.10% 0 Ethernet Msec Ti
136 2340 4072 574 0.16% 0.10% 0.08% 0 IP Input
392 1940 839 2312 0.16% 0.11% 0.10% 0 Per-Second Jobs
386 260 1602 162 0.08% 0.01% 0.00% 0 IP NAT Ager
243 20 1598 12 0.08% 0.00% 0.00% 0 CCE DP URLF cach
390 72 169 426 0.08% 0.00% 0.00% 0 Compute load avg
307 316 12821 24 0.08% 0.02% 0.00% 0 MMA DP TIMER
10 0 74 0 0.00% 0.00% 0.00% 0 WATCH_AFS