gavin han

Member Since: Sep 26, 2010

English
gavin han commented on ospf disconnected area 0 in WAN, Routing and Switching 2 months ago

NO. remote sites are not in area 0. they are in area X. only DC are in area 0.

gavin han commented on ospf disconnected area 0 in WAN, Routing and Switching 2 months ago

Thanks for the reply. #1 more topology description: We have about 200 sites, each site has 2 P2P...

gavin han commented on ospf disconnected area 0 in WAN, Routing and Switching 2 months ago

#1 I can't configure area0 router in area51 or area52 router. this is example diagram, our network...

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

issue fixed. i thought to bring AP in autonomous image and then back with unified image so i tried...

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

Issue is fixed. AP801 is inbuilt AP in 1941W router. i thought to try to boot it up with autonomous...

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

AP is AP801, it is inbuilt in 1941W router. i did try h/w reset from wlc but still no luck

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

No. i am using "flexconnect" mode on AP. why am i not able to do "no shut" on following interfaces...

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

here is the output. Plus: i am unable to do "no shut" on Dot11Radio0 & Dot11Radio1 (vWLC01)...

gavin han commented on SSID not published from AP even though it is ssid broadcast is enabled on WLAN in Getting Started with Wireless 2 months ago

SSID has already been enabled on AP group. this AP is AP801 integrated in 1941W router.

gavin han commented on unable to do traceroute, ping works. in WAN, Routing and Switching 5 months ago

shouldn't traceroute work by default?

gavin han commented on unable to do traceroute, ping works. in WAN, Routing and Switching 5 months ago

could someone advise how to fix this traceroute issue?

gavin han commented on UCS FI-6248 connect to 9504 or 5548? in Unified Computing 5 months ago

N5K is currently doing routing so we have to introduce N9K as core and move routing N9K. would you...

gavin han commented on lightweight AP that's trying to find AP, then unable to connect to WLC then operates standalone and then reboots in Getting Started with Wireless 8 months ago

can Lighweight Access Point work without WLC? out WLC broke so we don't have WLC anymore but ...

gavin han commented on lightweight AP that's trying to find AP, then unable to connect to WLC then operates standalone and then reboots in Getting Started with Wireless 9 months ago

Thanks but AP keeps rebooting. how to stop this reboot so that i can convert it to autonomous?

gavin han commented on 1941 router service module AP password reset? in Getting Started with Wireless 9 months ago

thx. so there is no way to save existing config of AP?

gavin han commented on 1941 router service module AP password reset? in Getting Started with Wireless 9 months ago

Thanks but can you share the process please. I couldn't find process on those links. I want to...

gavin han commented on 1941 router service module AP password reset? in Getting Started with Wireless 9 months ago

thanks. will this do password recovery for service module AP? 

gavin han commented on from where can i download Cisco modeling Labs OVA/ISO/OVF file? in Cisco Modeling Labs 1 year ago

I'm customer. we already bought Cisco Modeling Labs license thought. i was wondering from where to...

gavin han commented on what happens in split brain situation in case of vPC? how spanning-tree loops are avoided? in Other Data Center Subjects 1 year ago

what happens when peer-keepalive goes down 1st and then peerlink goes down, this situation will...

gavin han commented on script language for LAN, WAN, wireless? in LAN, Switching and Routing 1 year ago

do ppl use shell scripting? i see some job openings asking for shell scripting experience.

gavin han commented on hsrp election if both gateway has same priority, configured for preempt? in LAN, Switching and Routing 1 year ago

Thank you all. could hsrp flip at anytime without reason if both gateways have same priority and...

gavin han commented on rip on one interface in LAN, Switching and Routing 1 year ago

distribution lists won't work. i don't want to see any "connected" routes that's there in the...

gavin han commented on rip on one interface in LAN, Switching and Routing 1 year ago

what if you've following?router rip version 2 passive-interface default neighbor 10.125.100.2 no...

gavin han commented on rip on one interface in LAN, Switching and Routing 1 year ago

you're answer isn't right.this is how i've it configured. passive interface works differently in...

gavin han commented on pvst to rapid-pvst and hsrp convergence time? in LAN, Switching and Routing 1 year ago

Thanks. would 60 seconds be enough outage window for rapid-pvst, spanning-tree root, hsrp change?...

gavin han commented on how to identify port physically in ASR routers? in Other Data Center Subjects 2 years ago

Thanks. what does each digit represent in this Te0/1/0/0 port? how do i identify the linecard/port...

gavin han commented on VCS-Control converts SIP call to H323 before sending it to VCS-Expressway in TelePresence 3 years ago

Hi Paulo,H.323 <-> SIP interworking mode  -  "on"    - > will I have to change this mode?...

gavin han commented on connection drops -- internet user->router ->firewall->ace>servers in Firewalling 3 years ago

sorry. I wasn't sure where to post since ASA as well as routers are involved.

gavin han commented on connection drops -- internet user->router ->firewall->ace>servers in WAN, Routing and Switching 3 years ago

sorry. I wasn't sure where tu post since ASA as well as routers are involved.

gavin han commented on enable syslog debug level 7 and send logs to syslog in Firewalling 3 years ago

Thx. Would I need to add log for each ACL line? Ive ACL of more than 3000 lines so it would tough...

gavin han commented on what would cause "Total output drops" in LAN, Switching and Routing 3 years ago

Thanks Guys.a PC is connected to the phone. i.e.PC --> IP Phone ---> (Gi1/0/7) Switch.any...

gavin han commented on call drops from IP phone and UC softphone in IP Telephony 3 years ago

following is the QoS config. is that correct QoS config or do I need to add anything else? not sure...

gavin han commented on ASA write mem error in context in Firewalling 3 years ago

That works. Thank you. never thought about it

gavin han commented on serial inteface shows down/down in WAN, Routing and Switching 3 years ago

We found out that there was telco issue that's why we were seeing down/down status. Telco had...

gavin han commented on jumbo frames on 3750s & nexus 7K in LAN, Switching and Routing 3 years ago

Thanks again. This 3750 has one uplink where we need jumbo frames. It is connected to other...

gavin han commented on jumbo frames on 3750s & nexus 7K in LAN, Switching and Routing 3 years ago

Thank u so much. How about 6500 switch. Can we enable jumbo frames per port on 6500 switch?Sent...

gavin han commented on throughput through private line in WAN, Routing and Switching 3 years ago

Thanks all for your kind advise.round trip time is about 18 miliseconds.so we were using multiple...

gavin han commented on throughput through private line in WAN, Routing and Switching 3 years ago

Hi, only one data flow in this case. we have one server in each data center and we are transfering...

gavin han commented on Arpmgr busy, Possible ARP flood messeges on ACE in Application Networking 3 years ago

Hi Nicolas, I had TAC case open. we spanned vlans and took capture but we didn't see any arp storm...

gavin han commented on ISDN GW 3241 ; admin config guide in TelePresence 3 years ago

Thanks Tomonori. I was able to make this work but I came across another issue.I'm using TMS to...

gavin han commented on ISDN GW 3241 ; admin config guide in TelePresence 3 years ago

Hi,I registered ISDN GW to VCS-control with prefix 95. and then I tried to call 951231231212 from...

gavin han commented on NAT on ASA 8.4 (x) in Firewalling 3 years ago

Hi Karthik,where did you reference object obj-10.0.0.0? I don't see it in your statement does that...

gavin han commented on traceroute output analysis; running eigrp in LAN, Switching and Routing 3 years ago

Hi Richard,Thanks for your reply. in regards to your following response:The first part of your...

gavin han commented on how to delete vlan from ap group in Security and Network Management 4 years ago

oh my bad. I meant to ask..how to delete WLAN from the AP group.I guess I had a long night.

gavin han commented on prevent DOS attacked using cisco ASA in Security and Network Management 4 years ago

my bad. Thanks George...You're Da Man!

gavin han commented on ACE ; probe for host header-value in Application Networking 4 years ago

or can we do it using window? maybe using firefox on windows machine?please advise.

gavin han commented on ISDN GW 3241 ; admin config guide in TelePresence 4 years ago

Thanks you Jens and Tomonori. I appreciate your kind help.for IP to ISDN calls for endpoints...

gavin han commented on ISDN GW 3241 ; admin config guide in TelePresence 4 years ago

Thanks Jens. what voice and video prefix should be used to register it to VCS?

gavin han commented on ISDN GW 3241 ; admin config guide in TelePresence 4 years ago

Thank you so much. I very much appreciate your kind help . one more questions: I'll have to...

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