接入层交换机无法ping通核心交换机网关

youxiangadd

核心SW1和SW2都配置了网关，路由也做了，为什么在SW2上面就是无法PING通SW1的网关，帮忙检查检查，谢谢！
<SW1>
<SW1>dis cu
#
sysname SW1
#
vlan batch 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif20
ip address 10.0.20.254 255.255.255.0
#
interface Vlanif30
ip address 10.0.30.254 255.255.255.0
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 20 30
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 20 30
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
ip route-static 192.168.20.0 255.255.255.0 192.168.20.254
#
user-interface con 0
user-interface vty 0 4
#
return
<SW1>
---------------------------------------------------------------
<SW2>dis cu
#
sysname SW2
#
vlan batch 10
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
ip address 192.168.20.254 255.255.255.0
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 20
#
interface GigabitEthernet0/0/2
port link-type access
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
ip route-static 10.0.20.0 255.255.255.0 10.0.20.254
#
user-interface con 0
user-interface vty 0 4
#
return
<SW2>
------------------------------------------------------------------------
<SW2>ping 10.0.20.254
  PING 10.0.20.254: 56  data bytes, press CTRL_C to break
    Request time out
    Request time out
    Request time out
    Request time out
    Request time out

  --- 10.0.20.254 ping statistics ---
    5 packet(s) transmitted
    0 packet(s) received
    100.00% packet loss

anubis_amon

你这里SW1里没有配VLAN10的地址吧，SW2里也没有配VLAN20的地址，没法通信啊。

youxiangadd

anubis_amon 发表于 2018-4-23 09:46
你这里SW1里没有配VLAN10的地址吧，SW2里也没有配VLAN20的地址，没法通信啊。

但是我有配路由啊

anubis_amon

你这不相当于俩路由器的直连接口配在不通网段吗 不可能通啊  

youxiangadd

anubis_amon 发表于 2018-4-23 10:03
你这不相当于俩路由器的直连接口配在不通网段吗 不可能通啊

那你意思是interface vlan10 要配置和interface 20同一网段？

anubis_amon

youxiangadd 发表于 2018-4-23 10:12
那你意思是interface vlan10 要配置和interface 20同一网段？

现在我不方便做实验，也不太清楚。你试试吧，反正实验嘛，就是不停地试。
我感觉俩直连的交换机，在不同VLAN起SVI，应该保证交换机有共同的VLAN还有网段，然后指下网关，看看能不能通。感觉现网里一般没这么配的，SW1应该是台路由器了。

Rockyw

查一下核心层的路由表看看

qq839874295

你看你的sw1 和sw2都有vlan20 地址都是192.168.20.254不是冲突了啊

youxiangadd

vlan 10 和vlan 20都配了同一网段了，可以互通，可是sw2ping 10.0.20.254 不通，想配置路由过去说下一跳无效：
[SW2]ip route-static 10.0.20.0 255.255.255.0 192.168.20.254
Error: The next-hop address is invalid.
不知道怎么配了

qq839874295

你的两个交换机都占用了vlan20了 而且vlan地址都一样 额 冲突了。

youxiangadd

谢谢各位的回答，昨天做了路由，已经可以了，谢谢

youxiangadd

还有个小问题：
[GWH-W-8FS3152-1]dis ndp interface GigabitEthernet 1/1/1
Interface: GigabitEthernet1/1/1
    Status: Enabled, Pkts Snd: 391020, Pkts Rvd: 154, Pkts Err: 0
    Neighbor 1:  Aging Time: 161(s)
       MAC Address : 3822-d63e-5ba3
       Host Name   : GWH-W-9FS3152
       Port Name   : GigabitEthernet1/1/1
       Software Ver: Release 1702P22
       Device Name : H3C S3100-52P
       Port Duplex : FULL
       Product Ver : S3100-1702P22
       BootROM Ver : 305

    Neighbor 2:  Aging Time: 176(s)
       MAC Address : 3822-d63e-5627
       Host Name   : GWH-W-1FS3152
       Port Name   : GigabitEthernet1/1/1
       Software Ver: Release 1702P22
       Device Name : H3C S3100-52P
       Port Duplex : FULL
       Product Ver : S3100-1702P22
       BootROM Ver : 305

    Neighbor 3:  Aging Time: 122(s)
       MAC Address : 3822-d63e-57f5
       Host Name   : GWH-N--1FS3152      
       Port Name   : GigabitEthernet1/1/1
       Software Ver: Release 1702P22
       Device Name : H3C S3100-52P
       Port Duplex : FULL
       Product Ver : S3100-1702P22
       BootROM Ver : 305

    Neighbor 4:  Aging Time: 144(s)
       MAC Address : 3822-d634-5537
       Host Name   : GWH-W-7FS3126-2
       Port Name   : GigabitEthernet1/2/2
       Software Ver: Release 2211P06
       Device Name : H3C S3100-26TP-EI
       Port Duplex : FULL
       Product Ver : S3100-26TP-EI-2211P06
       BootROM Ver : 610


[GWH-W-8FS3152-1]

dis ndp 不是显示直连的交换机吗，为什么一个端口有那么多邻居？

youxiangadd

[SW2]ip route-static 10.0.20.254 255.255.255.0  192.168.20.1
Error: The next-hop address is invalid.

为什么老是invalid， 明明有这个地址：
[SW2]ip route-static 10.0.20.254 255.255.255.0  192.168.20.1
Error: The next-hop address is invalid.
[SW2]dis inter       
[SW2]dis interface vlan 10
Vlanif10 current state : UP
Line protocol current state : UP
Last line protocol up time : 2018-04-24 16:03:51 UTC-08:00
Description:
Route Port,The Maximum Transmit Unit is 1500
Internet Address is 192.168.20.1/24
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc9e-04a9
Current system time: 2018-04-24 16:35:58-08:00
    Input bandwidth utilization  : --
    Output bandwidth utilization :