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17
Helpful
12
Replies

Vlan 1 status is down , protocol is down

iteastern1
Level 1
Level 1

Hi to everyone,

Please help me.

This is the scenario.

I have 3 switches

1). Catalyst 4500X-16 SFP+ Switch

2). Catalyst 2900-X Series 48 Port and

3). Catalyst 2900-X Series 24 Port.

IP address:

4500X is 192.168.3.50 while

48 port 2900X is 192.168.3.41 and

24 port 2900X is 192.168.3.33.

If I connect my laptop directly to 2900X Series 48port I can ping 192.168.3.33 but when I directly connected 4500X and 4500X is connected to 48port 2900X(192.168.3.41) then I cannot ping 192.168.3.33. 

what should I do ?.

12 Replies 12

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

Make sure vlan1 SVI on the 4500x is not shut down, has an IP address with correct mask. Also, if you have multiple vlans between the 4500x and the 2900x make sure the link between them is configured as trunk.

Can you post config from the 4500x?

HTH

Hi Reza,

I already tried no shut in 4500x, also i have only 1 vlan which is default vlan 1.

here is the config:

Building configuration...

Current configuration : 1704 bytes
!
! Last configuration change at 07:51:51 UTC Thu Apr 14 2016
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname Switch
!
boot-start-marker
boot system flash bootflash:cat4500e-universal.SPA.03.07.03.E.152-3.E3.bin
boot-end-marker
!
!
vrf definition mgmtVrf
!
address-family ipv4
exit-address-family
!
address-family ipv6
exit-address-family
!
!
no aaa new-model
!
!
!
!
!
!
!
!
vtp mode transparent
!
power redundancy-mode redundant
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
interface Loopback1
ip address 192.168.2.31 255.255.255.0
!
interface Port-channel1
no ip address
!
interface FastEthernet1
vrf forwarding mgmtVrf
ip address 192.168.3.50 255.255.255.0
speed auto
duplex auto
!
interface TenGigabitEthernet1/1
no switchport
no ip address
!
interface TenGigabitEthernet1/2
switchport mode trunk
!
interface TenGigabitEthernet1/3
!
interface TenGigabitEthernet1/4
!
interface TenGigabitEthernet1/5
!
interface TenGigabitEthernet1/6
!
interface TenGigabitEthernet1/7
!
interface TenGigabitEthernet1/8
!
interface TenGigabitEthernet1/9
!
interface TenGigabitEthernet1/10
!
interface TenGigabitEthernet1/11
!
interface TenGigabitEthernet1/12
!
interface TenGigabitEthernet1/13
!
interface TenGigabitEthernet1/14
!
interface TenGigabitEthernet1/15
!
interface TenGigabitEthernet1/16
!
interface Vlan1
ip address 192.168.3.56 255.255.255.0
!
ip forward-protocol nd
ip http server
ip http authentication aaa
ip http path flash:
!
!
!
!
!
line con 0
stopbits 1
line vty 0 4
login
!
!
end

Thanks for posting the config.

After looking at the 4500x config, lets calcify a couple of things.

interface FastEthernet1
vrf forwarding mgmtVrf
ip address 192.168.3.50 255.255.255.0
speed auto
duplex auto

you also have

interface Vlan1
ip address 192.168.3.56 255.255.255.0

The first config is for the out of band port on the switch (mgmt0).  The second config is vlan1 and is used for in band management.  I am assuming you are trying to use the second one which is 192.168.3.56 255.255.255.0 right? if that is the case in your first post you pointed to 192.168.3.50  address.

So, if you want to use vlan1 which is .56 than you need to delete the first config

nterface FastEthernet1
vrf forwarding mgmtVrf
no ip address 192.168.3.50 255.255.255.0
speed auto
duplex auto

and now test again and let me know.

HTH

What command should I use to delete the first configuration?

Logon to the 4500x switch and try these commands:

config t

interface FastEthernet1
no ip address

HTH

Hi Reza,

after executing no ip address i deleted now my fastethernet1 ip address.


interface FastEthernet1
vrf forwarding mgmtVrf
no ip address
speed auto
duplex auto
!

I am trying to ping now 2960x 24Port (interface TenGigabitEthernet1/15) connected to my 4500x but still unable to ping, but I can still ping my 2960x 48Port connected to my (mgmt0).

what am I missing?

Can you post sh run from all 3 devices?

Also, is vlan1 interface on the 4500x up and running?

Can you post the output of  "sh int vlan1" from all switches?

HTH

4500X Series


Building configuration...

Current configuration : 1696 bytes
!
! Last configuration change at 12:02:11 UTC Sat Apr 16 2016
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname Switch
!
boot-start-marker
boot system flash bootflash:cat4500e-universal.SPA.03.07.03.E.152-3.E3.bin
boot-end-marker
!
!
vrf definition mgmtVrf
!
address-family ipv4
exit-address-family
!
address-family ipv6
exit-address-family
!
enable secret 5 $1$AJQq$U.lKa82n6WEt9Qm5T7qRC/
enable password 15
!
no aaa new-model
!
!
!
!
!
!
!
!
vtp mode transparent
!
power redundancy-mode redundant
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
interface Loopback1
no ip address
!
interface Port-channel1
no ip address
!
interface FastEthernet1
vrf forwarding mgmtVrf
no ip address
speed auto
duplex auto
!
interface TenGigabitEthernet1/1
no switchport
no ip address
!
interface TenGigabitEthernet1/2
switchport mode access
!
interface TenGigabitEthernet1/3
!
interface TenGigabitEthernet1/4
!
interface TenGigabitEthernet1/5
!
interface TenGigabitEthernet1/6
!
interface TenGigabitEthernet1/7
!
interface TenGigabitEthernet1/8
!
interface TenGigabitEthernet1/9
!
interface TenGigabitEthernet1/10
!
interface TenGigabitEthernet1/11
!
interface TenGigabitEthernet1/12
!
interface TenGigabitEthernet1/13
!
interface TenGigabitEthernet1/14
!
interface TenGigabitEthernet1/15
!
interface TenGigabitEthernet1/16
!
interface Vlan1
ip address 192.168.3.56 255.255.255.0
!
ip forward-protocol nd
ip http server
ip http path flash:
!
!
!
!
!
line con 0
stopbits 1
line vty 0 4
login
!
!
end

2960X Series 48Port

Building configuration...

Current configuration : 4218 bytes
!
! Last configuration change at 20:57:09 UTC Wed Apr 13 2016
! NVRAM config last updated at 20:57:09 UTC Wed Apr 13 2016
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Switch
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$H299$ahjx14nll.KgSAOU9VbWj0
!
no aaa new-model
clock timezone UTC 3 0
switch 1 provision ws-c2960x-48fpd-l
!
!
!
!
!
!
!
!
!
crypto pki trustpoint TP-self-signed-4234650624
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-4234650624
revocation-check none
rsakeypair TP-self-signed-4234650624
!
!
crypto pki certificate chain TP-self-signed-4234650624
certificate self-signed 01
3082022B 30820194 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 34323334 36353036 3234301E 170D3136 30343037 31393434
31325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D34 32333436
35303632 3430819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100AD66 B17DDD66 6A2DF9A8 2FD58230 3F1B3B8A 2D1B0761 CC59C9DC 0FB41D5D
4C3A233A 1E8517D8 124B89FC BF1EC5DD F815866D 5478B103 B8A942C2 D4D84236
75D96BCC 8575E977 3BDD2DD9 9A2818BA A6A8DEBA 16647129 021D80D9 A4ADBE84
BD6163CF 3C2FCA27 D9BA6B0A ECADFE80 F7493A43 804F1549 E3E7B3F3 F87C1949
E8830203 010001A3 53305130 0F060355 1D130101 FF040530 030101FF 301F0603
551D2304 18301680 14A0B956 87D7F491 AB6911E6 3C84C765 CCD1B9B4 71301D06
03551D0E 04160414 A0B95687 D7F491AB 6911E63C 84C765CC D1B9B471 300D0609
2A864886 F70D0101 05050003 81810029 5EC48CD4 C3B114B6 A0911CE9 B862CEC8
5387C680 054B62A5 9B14441A 9D24C3BF 325BC218 56BD2B34 0A30BF82 B9A3EC34
CB9F5633 0BE5E01C 35AD6BC5 6D859E7F 1D32C950 83750040 8A13F854 79B6CBA5
6409CF00 0AD7F323 B2D6E1BD E0AB3925 01603578 69AFF05E 7A21957F CCE27A60
C8417860 37065FC9 81727727 E36E97
quit
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
!
interface GigabitEthernet1/0/1
!
interface GigabitEthernet1/0/2
!
interface GigabitEthernet1/0/3
!
interface GigabitEthernet1/0/4
!
interface GigabitEthernet1/0/5
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
!
interface GigabitEthernet1/0/14
!
interface GigabitEthernet1/0/15
!
interface GigabitEthernet1/0/16
!
interface GigabitEthernet1/0/17
!
interface GigabitEthernet1/0/18
!
interface GigabitEthernet1/0/19
!
interface GigabitEthernet1/0/20
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/0/25
!
interface GigabitEthernet1/0/26
!
interface GigabitEthernet1/0/27
!
interface GigabitEthernet1/0/28
!
interface GigabitEthernet1/0/29
!
interface GigabitEthernet1/0/30
!
interface GigabitEthernet1/0/31
!
interface GigabitEthernet1/0/32
!
interface GigabitEthernet1/0/33
!
interface GigabitEthernet1/0/34
!
interface GigabitEthernet1/0/35
!
interface GigabitEthernet1/0/36
!
interface GigabitEthernet1/0/37
!
interface GigabitEthernet1/0/38
!
interface GigabitEthernet1/0/39
!
interface GigabitEthernet1/0/40
!
interface GigabitEthernet1/0/41
!
interface GigabitEthernet1/0/42
!
interface GigabitEthernet1/0/43
!
interface GigabitEthernet1/0/44
!
interface GigabitEthernet1/0/45
!
interface GigabitEthernet1/0/46
!
interface GigabitEthernet1/0/47
!
interface GigabitEthernet1/0/48
!
interface GigabitEthernet1/0/49
!
interface GigabitEthernet1/0/50
!
interface TenGigabitEthernet1/0/1
!
interface TenGigabitEthernet1/0/2
!
interface Vlan1
ip address 192.168.3.41 255.255.255.0
!
ip default-gateway 192.168.3.50
ip http server
ip http secure-server
!
!
!
!
!
line con 0
line vty 0 4
password ies@2012
login
line vty 5 15
password ies@2012
login
!
end

2960X Series 24Port

Building configuration...

Current configuration : 3313 bytes
!
! Last configuration change at 22:47:56 UTC Tue Apr 12 2016
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Switch_Tower_MCR
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$IWuP$J9ZyaxWx/yhucIUEDw8Zy.
!
no aaa new-model
clock timezone UTC 3 0
switch 1 provision ws-c2960x-24pd-l
!
!
!
!
!
!
!
!
!
crypto pki trustpoint TP-self-signed-1742566272
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1742566272
revocation-check none
rsakeypair TP-self-signed-1742566272
!
!
crypto pki certificate chain TP-self-signed-1742566272
certificate self-signed 01
3082022B 30820194 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31373432 35363632 3732301E 170D3136 30343036 31393436
34335A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 37343235
36363237 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100A8CC 6CE3EA53 F47CA6EA A3F4FC3B 63CB3358 B8C7DBF1 98F85E63 B010D229
5E3C4318 3E618A4F 07EE4FCE 3C1FD457 5944BFA1 34AC3E68 F4E6799A 7FBF3D4D
0A2B08AF B8B9CFEC 34A088F0 21115313 7D748828 EB29EF02 7661D63E FB45C8AF
5A8AC2DC 75B0FF51 CF1EAB7F 2F06ED82 B09FE195 260B37E4 46ACF797 5F8B9101
91A70203 010001A3 53305130 0F060355 1D130101 FF040530 030101FF 301F0603
551D2304 18301680 1421DC21 8AB68458 9C09B878 2A00B390 8AC9FB3A FB301D06
03551D0E 04160414 21DC218A B684589C 09B8782A 00B3908A C9FB3AFB 300D0609
2A864886 F70D0101 05050003 81810027 D91B2214 E734DD9C 86085973 2FF51947
3A7F7F76 D427C345 4166A722 4CB27826 5CC29076 86FD5C35 CFC37621 9A08766B
EE5DC736 2E4866E9 1C0D9D62 37DA1720 0053E765 10ABED97 5B9FB4DA 2BAFC284
88F7567D 6DEF38F7 D3674B70 58579452 8B88EF45 189E7E34 B0E44AE0 3FA7A51A
50DBC9A4 43D6CABC 38108BFB BE6C10
quit
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
!
interface GigabitEthernet1/0/1
!
interface GigabitEthernet1/0/2
!
interface GigabitEthernet1/0/3
!
interface GigabitEthernet1/0/4
!
interface GigabitEthernet1/0/5
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
!
interface GigabitEthernet1/0/14
!
interface GigabitEthernet1/0/15
!
interface GigabitEthernet1/0/16
!
interface GigabitEthernet1/0/17
!
interface GigabitEthernet1/0/18
!
interface GigabitEthernet1/0/19
!
interface GigabitEthernet1/0/20
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/0/25
!
interface GigabitEthernet1/0/26
!
interface TenGigabitEthernet1/0/1
!
interface TenGigabitEthernet1/0/2
!
interface Vlan1
ip address 192.168.3.39 255.255.255.0
!
ip default-gateway 192.168.3.30
ip http server
ip http secure-server
!
!
!
!
!
line con 0
line vty 0 4
login
line vty 5 15
login
!
end

here are the sh run of 3 devices.

Thank You So much for your kind response.

Hi Reza,

here are the sh int vlan 1 of all 3 devices

2960x series 24 port

Switch_Tower_MCR#sh int vlan1
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 0c11.67dd.73c0 (bia 0c11.67dd.73c0)
Internet address is 192.168.3.39/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 15:48:20, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 6000 bits/sec, 8 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3230687 packets input, 284256851 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
16 packets output, 1201 bytes, 0 underruns
0 output errors, 2 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out

2960x series 48Port

Switch#sh int vlan1
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 00cc.fc67.a440 (bia 00cc.fc67.a440)
Internet address is 192.168.3.41/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 12:45:07, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 6000 bits/sec, 9 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4356266 packets input, 373100551 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
27976 packets output, 22183599 bytes, 0 underruns
0 output errors, 2 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out

4500x Series

Switch#sh int vlan1
Vlan1 is down, line protocol is down , Autostate Enabled
Hardware is Ethernet SVI, address is 00c8.8b31.5e3f (bia 00c8.8b31.5e3f)
Internet address is 192.168.3.56/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 17:12:02, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
IPv6 L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
IPv6 L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
0 packets input, 0 bytes, 0 no buffer
Received 7 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
31 packets output, 1912 bytes, 0 underruns
0 output errors, 2 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out

I tried

config t

int vlan1

no shut

but vlan 1 in 4500x series is still down.

Hi Reza,

I tried

config t

int vlan1

no autostate

output:

Switch#sh int vlan1
Vlan1 is up, line protocol is up , Autostate Disabled

all my vlan1 now is up and running.

I can ping my 2960x 24Port when it is connected in 2960x 48Port, but cannot ping 2960x 24Port when it is connected to 4500x.

laptop ------->  2960x 48port <--------- 4500x

                                []

                       2960x 24port


Laptop, 4500x and 2960x 24Port are all connected to 2960 48Port.
this connection is good. I can ping 3 switches.

but this is the connection I need.

laptop ------->  2960x 48port <------- 4500x <------------ 2960x 24port

Laptop and 4500x connected to 2960x 48Port and

2960x 24Port connected to 4500x.

I can ping 4500x and 2960x 48Port but I cannot ping 2960x 24Port which is connected to 2960x 48Port.

Thanks

Hi Reza,

My problem has been solve by now. I changed the way my switches connected to each other.. from management 0 to(utp patch cord) to (fiber optic tengigabit ethernetport).

Thanks. Have a nice day.

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