About jorge.calvo

jorge.calvo · 10-22-2010

Hello,It seems I have the standby supervisor flash memory file system blocked whilst the sup-boodisk: file system is fine on the primary supervisor cardC6509#dir slavesup-bootdisk:%Error opening slavesup-bootdisk:/ (Device or resource busy)Both super...

jorge.calvo · 06-02-2010

Hello,I have a strange situation on one of my customer´s Data Centers:There are some servers connected to a C6509 switch via GigabitEthernet links set up at 1000/FD. I have observed the next difference regarding the throughput:- If flow-control is di...

jorge.calvo · 09-21-2009

Hello,I have a Cisco 4500 switche connected to a Service Provider router with a GigabitEthernet L3 interface and I am running EIGRP with the SP router.I enabled IP accounting output-packet on my switch interface but it is not collection any traffic s...

jorge.calvo · 08-05-2009

Hi,I have the following doubt:In my customer switches the NTP server configured is located in US and hence CST time is being used. Also the switches send syslog messages to a syslog server also located in US and working with CST times.My question is:...

jorge.calvo · 06-04-2009

Hello, IP address 224.0.0.2 is reserved for HSRP so, if I do a ping to 224.0.0.2 in a router/switch configured with HSRP only the IPs belonging to the HSRP groups should reply, I am right?However if I ping that IP I got a SAN replying to the ping. Co...

jorge.calvo · 06-25-2012

Hi,Have you tried in a different switch model and/or IOS? If yes, you could sniffer the traffic of the phone with Wireshark and check what messages the phone is sending and receiving.Regards.

jorge.calvo · 06-25-2012

Hi,Could you please try removing the voice VLAN setting on the port and check what happens?i.e. if you have VLAN10 for data and VLAN20 for voice, try this on the ports with 7937 phone connected:no switchport voice vlan 20 switchport access vlan 20Ch...

jorge.calvo · 12-02-2010

Hello Peter,Thanks for this! I actually mixed the SVI MACs with the Bridge ID.And with granularity I was refering only to the fact that the priority fields is divided in 4 bits for the bridge priority and 12 bits for the extended system-id instead of...

jorge.calvo · 12-02-2010

Hello,The extended STP system-id is used to provide more granularity. It is used too to allow having only one MAC address per switch making it easier to troubleshoot STP issues.Please see this example to see the differences:With standard system-id we...

jorge.calvo · 11-18-2010

Hello,Maybe my question could be obvious but, do you have IPs configured on the interfaces? I cannot see them in your configuration:R1(config)#interface serial3/0R1(config-if)#encap frameR1(config-if)#no frame-relay inverse-arpR1(config-if)#interface...

Member Since	‎11-29-2007 10:42 AM
Date Last Visited	‎11-08-2019 12:03 AM
Posts	149
Total Helpful Votes Received	44

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slavesup-bootdisk: file system blocked

Flow-Control and throughput

IP accounting not working

NTP clock timezone doubt

HSRP multicast IP address

Re: Problem with port security and voice vlan on newer IOS

Re: Problem with port security and voice vlan on newer IOS

Re: Doubts about STP id priority

Re: Doubts about STP id priority

Re: Frame Relay problem. Can't ping spoke routers