Hello guys,
Can I know the maximum number of switches to do stacking?
In fact, I am having an issue in my network migration project, I have 2 Juniper Ex 4300 in stack mode and from the ex4300 port ge-0/0/30 and ge-1/0/30 starts all the uplinks for my cisco 2960 and 2960G, they are all in redundancy mode.
SW1
Juniper EX 4300 (Core SW) Port ge-0/0/30 => Cisco 2960G (Access SW) Port Gi0/23
Juniper EX 4300 (Core SW) Port ge-1/0/30 => Cisco 2960G (Access SW)Port Gi0/24
SW2
Juniper EX 4300 (Core SW) Port ge-0/0/31 => Cisco 2960G (Access SW) Port Gi0/23
Juniper EX 4300 (Core SW) Port ge-1/0/31 => Cisco 2960G (Access SW) Port Gi0/24
SW3
Juniper EX 4300 (Core SW) Port ge-0/0/32 => Cisco 2960 (Access SW) Port Gi0/1
Juniper EX 4300 (Core SW) Port ge-1/0/32 => Cisco 2960 (Access SW) Port Gi0/2
I need to connect 17 Cisco SW to the Juniper but as soon as I connect a fourth SW, the up-link ports of the other Cisco switches shutdown.
Here is a sample of my Juniper EX 4300 Port Conf
set interfaces ge-0/0/30 description "SW_EBE1-mu Gi0/23"
set interfaces ge-0/0/30 ether-options 802.3ad ae1
set interfaces ge-1/0/30 description "SW_EBE1-mu Gi0/24"
set interfaces ge-1/0/30 ether-options 802.3ad ae1
set groups vstp_per_vlan protocols vstp vlan <*> interface ae1
set interfaces ge-0/0/30 ether-options 802.3ad ae1
set interfaces ge-1/0/30 ether-options 802.3ad ae1
set interfaces ae1 description "SW_EBE1-mu Po1"
set interfaces ae1 native-vlan-id 1
set interfaces ae1 aggregated-ether-options link-speed 1g
set interfaces ae1 aggregated-ether-options lacp active
set interfaces ae1 aggregated-ether-options lacp periodic slow
set interfaces ae1 unit 0 family ethernet-switching interface-mode trunk
set interfaces ae1 unit 0 family ethernet-switching vlan members 1
set interfaces ae1 unit 0 family ethernet-switching vlan members 10-16
set interfaces ae1 unit 0 family ethernet-switching vlan members 18-23
set interfaces ae1 unit 0 family ethernet-switching vlan members 30-33
set interfaces ae1 unit 0 family ethernet-switching vlan members 71
set interfaces ae1 unit 0 family ethernet-switching vlan members 75
set interfaces ae1 unit 0 family ethernet-switching vlan members 99
set interfaces ae1 unit 0 family ethernet-switching vlan members 101-104
set interfaces ae1 unit 0 family ethernet-switching storm-control default
set protocols rstp interface ae1
set protocols vstp vlan 30 interface ae1 cost 100
And this one for Cisco Catalyst 2960G
interface Port-channel1
description to ae1
switchport trunk allowed vlan 10-16,18-23,30-33,71,75,99,101-104,118-120,278
switchport trunk allowed vlan add 390,666,950,1048,1049,1300-1302
switchport mode trunk
switchport nonegotiate
spanning-tree cost 1
end
interface GigabitEthernet0/23
description to ge-0/0/30
switchport trunk allowed vlan 10-16,18-23,30-33,71,75,99,101-104,118-120,278
switchport trunk allowed vlan add 390,666,950,1048,1049,1300-1302
switchport mode trunk
switchport nonegotiate
channel-group 1 mode active
end
interface GigabitEthernet0/24
description to ge-1/0/30
switchport trunk allowed vlan 10-16,18-23,30-33,71,75,99,101-104,118-120,278
switchport trunk allowed vlan add 390,666,950,1048,1049,1300-1302
switchport mode trunk
switchport nonegotiate
channel-group 1 mode active
end
Here are the logs from my SWs
1. SW_EBE1-mu
Syslog logging: enabled (0 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled)
No Active Message Discriminator.
No Inactive Message Discriminator.
Console logging: level debugging, 17 messages logged, xml disabled,
filtering disabled
Monitor logging: level debugging, 0 messages logged, xml disabled,
filtering disabled
Buffer logging: level debugging, 17 messages logged, xml disabled,
filtering disabled
Exception Logging: size (4096 bytes)
Count and timestamp logging messages: disabled
File logging: disabled
Persistent logging: disabled
No active filter modules.
Trap logging: level informational, 20 message lines logged
Log Buffer (4096 bytes):
*Mar 1 00:00:47.169: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to downAuth Manager registration failed
*Mar 1 00:00:48.846: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar 1 00:00:53.603: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan33, changed state to down
*Mar 1 00:00:53.787: %SYS-5-CONFIG_I: Configured from memory by console
*Mar 1 00:00:54.626: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(58)SE1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 05-May-11 02:53 by prod_rel_team
*Mar 1 00:00:54.651: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Mar 1 00:00:55.574: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
*Mar 1 00:25:23.220: %LINK-3-UPDOWN: Interface GigabitEthernet0/23, changed state to up
*Mar 1 00:25:25.619: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 24 on Port-channel1 VLAN75.
*Mar 1 00:25:25.619: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking Port-channel1 on VLAN0075. Inconsistent local vlan.
*Mar 1 00:25:26.265: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/23, changed state to up
*Mar 1 00:25:26.600: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan33, changed state to up
*Mar 1 00:25:27.229: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
*Mar 1 00:25:27.783: %LINK-3-UPDOWN: Interface GigabitEthernet0/24, changed state to up
*Mar 1 00:25:28.236: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up
*Mar 1 00:25:31.130: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/24, changed state to up
2. SW_EBE2-mu
Syslog logging: enabled (0 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled)
No Active Message Discriminator.
No Inactive Message Discriminator.
Console logging: level debugging, 17 messages logged, xml disabled,
filtering disabled
Monitor logging: level debugging, 0 messages logged, xml disabled,
filtering disabled
Buffer logging: level debugging, 17 messages logged, xml disabled,
filtering disabled
Exception Logging: size (4096 bytes)
Count and timestamp logging messages: disabled
File logging: disabled
Persistent logging: disabled
No active filter modules.
Trap logging: level informational, 20 message lines logged
Log Buffer (4096 bytes):
*Mar 1 00:00:47.169: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to downAuth Manager registration failed
*Mar 1 00:00:48.846: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar 1 00:00:53.603: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan33, changed state to down
*Mar 1 00:00:53.787: %SYS-5-CONFIG_I: Configured from memory by console
*Mar 1 00:00:54.626: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(58)SE1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 05-May-11 02:53 by prod_rel_team
*Mar 1 00:00:54.651: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Mar 1 00:00:55.574: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
*Mar 1 00:25:23.220: %LINK-3-UPDOWN: Interface GigabitEthernet0/23, changed state to up
*Mar 1 00:25:25.619: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 24 on Port-channel1 VLAN75.
*Mar 1 00:25:25.619: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking Port-channel1 on VLAN0075. Inconsistent local vlan.
*Mar 1 00:25:26.265: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/23, changed state to up
*Mar 1 00:25:26.600: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan33, changed state to up
*Mar 1 00:25:27.229: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
*Mar 1 00:25:27.783: %LINK-3-UPDOWN: Interface GigabitEthernet0/24, changed state to up
*Mar 1 00:25:28.236: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up
*Mar 1 00:25:31.130: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/24, changed state to up
Can anyone help me to solve this issue?
I am actually working in a project of migrating a call center and the migration will be as from next week
