MSTP
SW3 SW4链路聚合：
inte eth-trunk 1
port link-type trunk
port trunk allow-pass vlan 10 20
mode lacp-static 静态LACP
trunkport g0/0/2 g0/0/4 加入端口
disp eth-trunk 1 查看聚合链路selected 活动 非活动 unselected
inte eth-trunk 1
port link-type trunk
port trunk allow-pass vlan 10 20
mode lacp-static
trunkport g0/0/3 g0/0/4
上联口配置：
VLAN 10 20 41
port link-type access
port default vlan 31
port link-type access
port default vlan 41
SW3 SW4创建VLAN接口：vlanif
inte vlanif 10
ip addr 192.168.10.252 24
inte vlanif 20
ip addr 192.168.20.252 24
inte vlanif 10
ip addr 192.168.10.253 24
inte vlanif 20
ip addr 192.168.20.253 24
inte vlanif 31
ip addr 192.168.31.3 24
inte vlanif 20
ip addr 192.168.41.3 24
VRRP 将2台交换机 路由器虚拟成一台设备 路由器
按VLAN设置负载分担：
sw3
inte vlanif 10
vrrp vrid 1 virtual-ip 192.168.10.254 虚拟IP
vrrp vrid 1 prioority 120 主设备默认100
vrrp vrid 1 preempt-mode timer delay 20 抢占延时模式时间20s 50s
sw4
inte vlanif 20
vrrp vrid 1 virtual-ip 192.168.20.254 虚拟IP
备用设备默认100
vrrp vrid 1 preempt-mode timer delay 20 抢占延时模式时间20s 50s
路由器：
dhcp enable
ip pool dhcppool 创建地址池
dns-list 8.8.8.8
network 192.168.1.0 mask 24
gateway-list 192.168.1.254
excluded-ip-address 192.168.1.250 192.168.1.253
lease day 2
disp this 查看地址池
inte g0/0/0
dhcp select globale 在这个接口上启用全局地址池
ip route-static 192.168.1.0 192.168.2.1 设置返程路由，子网多个网段配多个近程路由
接入交换机中继：
dhcp enable
inte vlanif 10
dhcp select relay 启用中继
dhcp relay server-ip 192.168.2.2 服务器地址
inte vlanif 20
dhcp select relay
dhcp relay server-ip 192.168.2.2
单臂路由:
dhcp enable
inte g0/0/0.10
ip addr 192.168.10.254 24
inte g0/0/0.20
ip addr 192.168.20.254 24
dhcp enable
ip pool pool10
dns-list 10.10.10.10
network 192.168.10.0 mask 24
gateway-list 192.168.10.254
lease day 2
dhcp select gloable
dot1q termination vid 10 取消VLAN10标签
arp broadcast enable 启用广播功能
ip pool pool20
dns-list 20.20.20.20
network 192.168.20.0 mask 24
gateway-list 192.168.20.254
lease day 2
dhcp select gloable
dot1q termination vid 20 取消VLAN20标签
arp broadcast enable 启用广播功能
sw: inte g0/0/3
port trunk all
port trunk allow-pass vlan 10 20
路由器的SNMP调试
snmp-agent sys-info version v2c
snmp-agent sys-info contact Mr.liu tel:13888888888
snmp-agent sys-info location liu ser
snmp-agent community read admread
snmp-agent community write admwrite
snmp-agent trap enable
snmp-agent target-host address udp-domain 10.0.0.1 params securityname MSR36 v2c
OSPF:
AR2
inte loopback 0
ip address 2.2.2.2 32 做route ID
ospf 1 router-id 2.2.2.2
area 0
network 10.0.1.2 0.0.0.0 精准接口加入OSPF
area 2
network 10.1.1.2 0.0.0.0
AR3
inte loopback 0
ip address 3.3.3.3 32
ospf 1 router-id 3.3.3.3
area 1
network 10.1.1.3 0.0.0.0
状态：init 2way exstart excheng loading full 邻居关系建立
AR1
inte loopback 0
ip address 10.10.10.10 32
inte loopback 1
ip address 1.1.1.1 32
ospf 1 router-id 1.1.1.1
area 0
network 10.0.1.1 0.0.0.0
network 10.10.10.10 0.0.0.0
disp ip routing-table 查看路由
AR2配置返程路由：
ip route-static 192.168.10.0 24 192.168.4.1
ip route-static 192.168.20.0 24 192.168.4.1
ip route-static 192.168.30.0 24 192.168.4.1
在OSPF中重发布静态路由
ospf 1
import-route static
