Cisco Switching/Routing :: 891 Using V.92 Port For Backup?
Mar 14, 2012
My company uses Cisco 891's in replacement of the 1811 where we would have DBU used via an external modem and a triggered time of 3 minutes after a primary connection failure was identified. In testing the 891 in a Layer 2 failure environment, it is within milliseconds that the v.92 port is engaging after the layer 2 failure. Has anyone been able to get it to attempt at a more than millisecond rate?
Redacted config from router:
ip sla 1
icmp-echo <%= probeIP1 %> source-interface GigabitEthernet0
[Code].....
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Jan 20, 2013
Here's my problem. I'm going to be using Cisco 1941 routers at a bunch of remote sites. All of these sites have 2 comm paths out. Some of them have 2 IP/VHF radios and some have 1 IP/VHF radio and a copper link using Patton ethernet extenders. From the VHF radios the data hit our MPLS network back to our HQ and the sites with copper go directly back to our HQ. Everything ends up at a Cisco 4948 switch. The problem I'm having is that I want the routers at the remote site to use one ethernet port (G0/0) as the primary and the other (G0/1) as the backup interface. I've tried the backup interface command but the problem is that depending on where an outage occurs the ethernet link to either the radio or Patton stays up so it never switches over. We're using OSPF as our routing protocol and I'm sure there's something that can be done with it but I'm not sure what.
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[code]....
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Jul 7, 2012
use PAGP as backup for wireless link with another wireless link.
__WiFi________
PC-------Switch 1 Switch2---------- PC
__WiFi________
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Jun 2, 2008
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policy-list backup
There are nothing backup and nothing in the log.
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Mar 15, 2012
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Apr 16, 2013
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Sep 16, 2012
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AP-C2R1C5-3750#sh run | b arch archive path scp://mchenry:PASSWORD@172.20.22.229//C:/Program_Files/OpenSSH/Cisco_Configs/Switch_Config
username mchenry privilege 15 password 7 XXXXXXXXXXXXXXXXXXXXX
ip scp server enable
Error: %scp: /C:/Program_Files/OpenSSH/Cisco_Configs/Switch_ConfigSep-17-16-04-44.172-1: No such file or di
SWITCH#ping 172.20.22.229 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.20.22.229, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 33/33/34 ms
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Jan 15, 2013
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Feb 18, 2013
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Jun 5, 2013
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Apr 24, 2012
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But if there is a problem with firewall? Etc. FW 1 goes down. Is it possible with WLC 2504 to use it's second port as backup port ? And use the same IP address between them?
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Apr 25, 2012
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Does the backup interface port function on the WLC allow traffic to be failed over from a centrally switched SSID via backup interfaces to an alternative device? If this does work will only physical link failure to the primary firewall cause the backup port to be activated or is there configuration parameters which can be specified for load, packet loss or latency which can be used as criteria to cause the backup port to be utilized?
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Sep 8, 2012
Since WLC5508 MGMT interface is configured a AP-Mgr at the same time, can I set a Backup Port to WLC5508 MGMT interface? Refer to WLC configuration Guide:
In the Backup Port text box, enter the number of the backup port assigned to the management interface. If the primary port for the management interface fails, the interface automatically moves to the backup port.
Note Do not define a backup port for an AP-manager interface. Port redundancy is not supported for AP-manager interfaces. If the AP-manager interface fails, all of the access points connected to the controller through that interface are evenly distributed among the other configured AP-manager interfaces
if I need to configure the backup port for MGMT interface, i need to remove the AP-manager on MGMT interface and create a network dynamic interface for AP-Manager ?
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Jul 10, 2012
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