10-10-2013 07:01 AM - edited 03-07-2019 03:57 PM
Hi all,
i have got a new switch (4500-X) which i would like to connect to our existing 4507R switch. So i configured trunk ports on each of them, like i do this with all of my other access switches. I tried so many things, but i cant reach vlans from the new switch and iam totaly out of ideas
Iam quite sure that i make a verry dump config issue, but i cant fine the fault in my config...hopyfully someone could please help me? I hope this is the right information you need.
Many many Thanks!
The "OLD" Switch (4507R):
OLD#sh ver
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASEK9-M), Version 12.2(54)SG, RELEASE SOFTWARE (fc3)
OLD#sh run int gi3/6
Building configuration...
Current configuration : 149 bytes
!
interface GigabitEthernet3/6
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
end
OLD#sh int gi3/6 switch
Name: Gi3/6
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
OLD#sh int gi3/6 trunk
Port Mode Encapsulation Status Native vlan
Gi3/6 on 802.1q trunking 1
Port Vlans allowed on trunk
Gi3/6 1-4094
Port Vlans allowed and active in management domain
Gi3/6 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
Port Vlans in spanning tree forwarding state and not pruned
Gi3/6 1
The "NEW" Switch (4500-X):
NEW#sh ver
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.04.00.SG RELEASE SOFTWARE (fc3)
NEW#sh run int te1/32
Building configuration...
Current configuration : 94 bytes
!
interface TenGigabitEthernet1/32
switchport mode trunk
end
NEW#sh int te1/32 switchport
Name: Te1/32
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
NEW#sh int te1/32 trun
Port Mode Encapsulation Status Native vlan
Te1/32 on 802.1q trunking 1
Port Vlans allowed on trunk
Te1/32 1-4094
Port Vlans allowed and active in management domain
Te1/32 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
Port Vlans in spanning tree forwarding state and not pruned
Te1/32 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
Solved! Go to Solution.
01-09-2014 08:54 AM
Tobias
The ip default-gateway command on the new switch should allow it to talk to the old switch L3 vlan interfaces. The docs for the 4500-X however are a little vague in terms of when you need to use a static route. Can you add this to your new switch and see if it changes anything -
ip route 0.0.0.0 0.0.0.0 10.98.0.254
Jon
10-10-2013 07:47 AM
Tobias,
The reason the trunk is not coming up is becasue you have a 1G interface connecting to a 10G. Try connecting a 1G to 1G or 10G to 10G. You cannot connect these interfaces at different speeds.
HTH,
Mark
10-10-2013 10:42 PM
Mark,
in both ports are only 1G gbics..i thought that should work?
Thanks,
tobias
10-11-2013 09:15 AM
Hi Tobias,
If you want to set up the link , try to set speed of the Te interface manually to 1000:
Int te1/32
Speed 1000
Switchport nonegotiate
And if would be necessary, do the dame on interface gi3/6:
Int gi3/6
Speed 1000
Be sure that the TenGigaEthernet module is 1G/10G compliant.
Good luck.
Best regards.
10-12-2013 09:53 PM
Hello
1. The 4500x has dual purpose UPLINKS, they can be either 10gig or 1gig, the speed is auto-detected.
Tobias.
Either the interface is down, down; Or there is a problem with spanning-tree.
- The problem is spanning-tree, vlans in forwarding state: vlan 1 only. So even when other vlans are allowed to cross the trunk STP is forwarding in that instance.
OLD#sh int gi3/6 trunk
Port Mode Encapsulation Status Native vlan
Gi3/6 on 802.1q trunking 1
Port Vlans allowed on trunk
Gi3/6 1-4094
Port Vlans allowed and active in management domain
Gi3/6 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
Port Vlans in spanning tree forwarding state and not pruned
Gi3/6 1
- Now in the new switch, all vlans are allowed and forwarding.
NEW#sh int te1/32 trun
Port Mode Encapsulation Status Native vlan
Te1/32 on 802.1q trunking 1
Port Vlans allowed on trunk
Te1/32 1-4094
Port Vlans allowed and active in management domain
Te1/32 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
Port Vlans in spanning tree forwarding state and not pruned
Te1/32 1-3,9-10,20,23-24,26,32-40,66-68,95-101,110-111,120,200,500-501,510,995-999
I have seen this issue before, when one switch is in vtp transparent and the other is either client or server. Can you share the output of the command show vtp status for both switches.
Regards.
Wilson B.
!Please rate useful post.
12-10-2013 02:08 AM
Hello Wilson,
sorry for the late reply. Following are the two outputs:
OLD#sh vtp stat
VTP Version capable : 1 to 3
VTP version running : 1
VTP Domain Name : domain99
VTP Pruning Mode : Enabled
VTP Traps Generation : Disabled
Device ID : 000c.30b1.7540
Configuration last modified by 10.98.0.254 at 6-17-13 11:52:16
Local updater ID is 10.98.0.254 on interface Vl1 (lowest numbered VLAN interface found)
Feature VLAN:
--------------
VTP Operating Mode : Server
Maximum VLANs supported locally : 1005
Number of existing VLANs : 44
Configuration Revision : 59
MD5 digest : 0xAF 0xE7 0xA6 0x16 0xA3 0xED 0xFE 0xBC
0x5C 0xF6 0x51 0xE4 0x23 0x5C 0xF8 0x9F
NEW#sh vtp stat
VTP Version capable : 1 to 3
VTP version running : 1
VTP Domain Name : domain99
VTP Pruning Mode : Enabled
VTP Traps Generation : Disabled
Device ID : f872.ead8.4400
Configuration last modified by 10.98.0.254 at 6-17-13 11:52:16
Feature VLAN:
--------------
VTP Operating Mode : Client
Maximum VLANs supported locally : 1005
Number of existing VLANs : 44
Configuration Revision : 59
MD5 digest : 0xAF 0xE7 0xA6 0x16 0xA3 0xED 0xFE 0xBC
0x5C 0xF6 0x51 0xE4 0x23 0x5C 0xF8 0x9F
12-10-2013 02:34 AM
Tobias
Can you post "sh spanning-tree vlan 3" from each switch
Are both interfaces showing as up/up ?
Jon
12-10-2013 06:41 AM
Hi!
Yes, sure:
######### OLD ##########
OLD#sh spanning-tree vlan 3
VLAN0003
Spanning tree enabled protocol ieee
Root ID Priority 32771
Address 000c.30b1.7540
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32771 (priority 32768 sys-id-ext 3)
Address 000c.30b1.7540
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi3/5 Desg FWD 4 128.133 P2p
Gi3/6 Desg FWD 4 128.134 P2p
Gi4/2 Desg FWD 4 128.194 P2p
Gi4/3 Desg FWD 4 128.195 P2p
Gi5/1 Desg FWD 4 128.257 P2p
Gi5/3 Desg FWD 4 128.259 P2p
Gi5/4 Desg FWD 4 128.260 P2p
Gi5/5 Desg FWD 4 128.261 P2p
Gi5/6 Desg FWD 4 128.262 P2p
Gi6/1 Desg FWD 4 128.321 P2p
Gi6/2 Desg FWD 4 128.322 P2p
Gi6/3 Desg FWD 4 128.323 P2p
Gi6/5 Desg FWD 4 128.325 P2p
Gi6/6 Desg FWD 4 128.326 P2p
Gi7/1 Desg FWD 4 128.385 P2p
Gi7/2 Desg FWD 4 128.386 P2p
Gi7/4 Desg FWD 4 128.388 P2p
Gi7/5 Desg FWD 4 128.389 P2p
Gi7/6 Desg FWD 4 128.390 P2p
Po3 Desg FWD 3 128.643 P2p
Po6 Desg FWD 3 128.646 P2p
Po7 Desg FWD 3 128.647 P2p
OLD#sh int gi3/6
GigabitEthernet3/6 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0016.9dd4.1fe7 (bia 0016.9dd4.1fe7)
Description: trunk core NEU
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX
Media-type configured as SFP connector
input flow-control is on, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:04, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (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 9000 bits/sec, 16 packets/sec
809802 packets input, 156747108 bytes, 0 no buffer
Received 809180 broadcasts (809157 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
77368681 packets output, 5652973144 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
######### NEW ##########
NEW#sh spanning-tree vlan 3
VLAN0003
Spanning tree enabled protocol ieee
Root ID Priority 32771
Address 000c.30b1.7540
Cost 4
Port 32 (TenGigabitEthernet1/32)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32771 (priority 32768 sys-id-ext 3)
Address f872.ead8.4400
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/32 Root FWD 4 128.32 P2p
NEW#sh int ten 1/32
TenGigabitEthernet1/32 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet Port, address is f872.ead8.441f (bia f872.ead8.441f)
Description: trunk sw99rz1-1-1
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 set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX
input flow-control is on, output flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 13000 bits/sec, 18 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
365663 packets input, 26752705 bytes, 0 no buffer
Received 365496 broadcasts (363520 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
3843 packets output, 745065 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Thanks a lot!
tobias
12-10-2013 11:08 AM
Tobias
That looks fine, STP BPDUs are certainly going across the link because the new switch recognises the old switch as STP root for vlan 3.
When you say you can't reach vlans how exactly are you testing this ?
Can you post a "sh vlan brief" from the new switch ?
Jon
12-10-2013 11:10 PM
Hi and thanks for your time!
I cant reach non of the vlan interfaces configured on the OLD switch, only vlan1 interface.
I attach the config from OLD switch (NEW switch is connected to GI3/6) and NEW switch.
VLAN on NEW switch:
NEW#sh vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Te1/1, Te1/2, Te1/3, Te1/4
Te1/5, Te1/6, Te1/7, Te1/8
Te1/9, Te1/10, Te1/11, Te1/12
Te1/13, Te1/14, Te1/15, Te1/16
Te1/17, Te1/18, Te1/19, Te1/20
Te1/21, Te1/22, Te1/23, Te1/24
Te1/25, Te1/26, Te1/27, Te1/28
Te1/29, Te1/30, Te1/31, Te2/1
Te2/2, Te2/3, Te2/4, Te2/5
Te2/6, Te2/7, Te2/8
2 default_Data_Vlan active
3 RZ1-nonServer_Vlan active
9 snsmon active
10 VoIP active
20 DSL-ROUTER-EXTERN active
23 Euras-RZ1 active
24 Euras-Client-Transit active
26 IP-Kameras active
32 Access_CC active
33 ACCESS_BUHA active
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
34 ACCESS_HALLE5 active
35 Access_Halle4 active
36 Access_Halle1 active
37 Access_Halle3 active
38 Access_RZ1 active
39 Access_GM active
40 NH3+4 active
66 Shop/Logistik active
67 Webfacing active
68 LotusMail active
95 DatabaseServer active
96 VMware-Netz active
97 Storage-Vlan active
98 Management-Vlan active
99 SERVER-RZ1 active
100 bladetest active
101 WLAN_101_Scanner active
110 i5-HMC active
111 i5-HMC2 active
120 Mysql_Replication active
200 AP-WLC-Vlan active
500 DMZ active
501 Guest-Vlan active
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
510 DMZ2 active
995 Shop_Cluster_Vlan active
996 I-Series_Blade-Vlan active
997 Blade_Management active
998 I5_SYNCLINK active
999 Euras_Transit active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
01-09-2014 08:54 AM
Tobias
The ip default-gateway command on the new switch should allow it to talk to the old switch L3 vlan interfaces. The docs for the 4500-X however are a little vague in terms of when you need to use a static route. Can you add this to your new switch and see if it changes anything -
ip route 0.0.0.0 0.0.0.0 10.98.0.254
Jon
01-10-2014 12:34 AM
YOU ARE MY HERO
It works now, all is working as it should be!
Many Thanks Jon!!
01-10-2014 02:58 AM
Hello
Would you please mark this discussion as correct and rate it so others may be able to benefit from the answer provided by JON
res
Please don't forget to rate any posts that have been helpful.
Thanks.
12-07-2015 12:36 PM
Hi,
You have seen an issue where the trunk will not form if one switch is in transparent and the other in Client? I am having an issue with a trunk forming across a metro ethernet connection. One of the switches is in transparent mode and the other client.
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