RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Anyone have more info or a contact for the Akamai edge cache server? I can't seem to find anything on their website about the program. Thanks Tim Cappalli, Network Engineer LTS | Brandeis University cappa...@brandeis.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Colantuoni, Robert Sent: Wednesday, September 18, 2013 4:17 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade They tracked our problem down to an issue on their side -- they were not properly processing our BGP advertisements. They've fixed it but I haven't seen any change in traffic just yet... --- Robert G Colantuoni Senior Programmer Analyst CIT - Network and Classroom Services SUNY Buffalo r...@buffalo.edu 716.645.3552 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter P Morrissey Sent: Wednesday, September 18, 2013 4:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Ours didn't at first, but eventually kicked in and thankfully took on a good 2 gigs worth. Pete Morrissey -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Julian Y Koh Sent: Wednesday, September 18, 2013 3:48 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade On Sep 18, 2013, at 14:40 , Colantuoni, Robert r...@buffalo.edu wrote: We actually have an Akamai cache on campus, which has taken the brunt of the load in the past. It doesn't seem to be getting the traffic this time around, they are trouble-shooting it now. Yeah, our Akamai server isn't picking up the load this time either. -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: http://www.it.northwestern.edu/ PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Anyone have more info or a contact for the Akamai edge cache server? I can't seem to find anything on their website about the program. http://www.akamai.com/html/partners/network_partner.html We participate in both the Akamai Accelerated Networks Program (AANP) and another CDN (beta) that doesn't want to be mentioned publically. During most of last semester, our caching subnet saw 100Mb/s IN and 400Mb/s OUT average. This was with an uplink that averages ~ 2.5Gb/s. It was turn-key - it took me more time to push the approval through our legal dept than it did to get the servers online. They support both IPv4/6 and use eBGP to keep track of your address space so they can correctly route your customers to the local on-campus cache. They restored caching last night at 8pm and we saw about 400Mb/s offload to the cache and our internet link flattened out. --- Robert G Colantuoni Senior Programmer Analyst CIT - Network and Classroom Services SUNY Buffalo r...@buffalo.edu 716.645.3552 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Doesn't Apple do any staggering? Frank -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Wednesday, September 18, 2013 1:35 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Our wireless traffic jumped up to 5 times what it was before the update. On Wed, 18 Sep 2013, Eric T. Barnett wrote: Date: Wed, 18 Sep 2013 13:29:55 -0500 From: Eric T. Barnett ebarn...@astate.edu Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@listserv.educause.edu To: WIRELESS-LAN@listserv.educause.edu Subject: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that's still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu 662-325-9311 (phone) ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
To hear Apple tell it, everything they do is staggering, actually Bob Brown Online Executive Editor, News T: 508.766.5418 Alpha Doggs Network Research Blog http://www.networkworld.com/community/?q=alphadoggs | Google+:Bob Brown https://plus.google.com/104712908618368674642 | Twitter profile http://twitter.com/alphadoggs | LinkedIn profile http://www.linkedin.com/in/bobbrownboston | Pinterest http://pinterest.com/alphadoggs/ | Facebook Fan Page http://www.facebook.com/pages/Bob-BrownAlpha-DoggsNetwork-World/1355436931 52630?ref=ts | Quora http://www.quora.com/Bob-Brown-5 NETWORK WORLD 492 Old Connecticut Path | PO Box 9002 | Framingham, MA 01701-9002 On 9/19/13 9:26 AM, Frank Bulk (iname.com) frnk...@iname.com wrote: Doesn't Apple do any staggering? Frank -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Wednesday, September 18, 2013 1:35 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Our wireless traffic jumped up to 5 times what it was before the update. On Wed, 18 Sep 2013, Eric T. Barnett wrote: Date: Wed, 18 Sep 2013 13:29:55 -0500 From: Eric T. Barnett ebarn...@astate.edu Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@listserv.educause.edu To: WIRELESS-LAN@listserv.educause.edu Subject: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that's still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu 662-325-9311 (phone) ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Same here.. Randy Ethridge Network Engineer V Information Services Eastern Illinois University rlethri...@eiu.edu Office Ph. 217-581-7640 Proud to say I am EIU EIU THINKS GREEN: Before printing this e-mail think if it is necessary - Original Message - From: Eric T. Barnett ebarn...@astate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Wednesday, September 18, 2013 1:29:55 PM Subject: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that’s still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Our wireless traffic jumped up to 5 times what it was before the update. On Wed, 18 Sep 2013, Eric T. Barnett wrote: Date: Wed, 18 Sep 2013 13:29:55 -0500 From: Eric T. Barnett ebarn...@astate.edu Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@listserv.educause.edu To: WIRELESS-LAN@listserv.educause.edu Subject: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that's still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu 662-325-9311 (phone) ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Doubled for us as well from yesterday- [cid:image001.png@01CEB47C.2AC8A520] Chris Hart Network Engineer, Telecommunications Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Rd Evanston, IL 60208 847-467-7747 www.it.northwestern.eduhttp://www.it.northwestern.edu/ inline: image001.png
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Hah, apparently the word is out... Derek Johnson | Data Communications Coordinator FORT HAYS STATE UNIVERSITY 415 Lyman Dr. TH 101, Hays, KS 67601 (785) 628 - 5688 | djohn...@fhsu.edu From: Chris Hart ch...@northwestern.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Date: 09/18/2013 02:34 PM Subject:Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Sent by:The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Doubled for us as well from yesterday- Chris Hart Network Engineer, Telecommunications Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Rd Evanston, IL 60208 847-467-7747 www.it.northwestern.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. image/gif
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Not seeing any spikes yet on our wireless infrastructure, but I am sure it is just a matter of time though once classes are done for the day. On a side note, the #1 app sorted by bytes in our Palo Alto firewall over the past hour is itunes-base. I thought it would be categorized as something else like apple-update or apple-appstore. Anyone else with a PAN seeing something similar? On Wed, Sep 18, 2013 at 1:35 PM, Case, Brandon J ca...@purdue.edu wrote: We are. Typical load at this time on a Wednesday is around 1.5Gbps aggregate for our ~22K-ish concurrent users. It’s currently cooking along at 2.8Gbps with a very clear jump right around that time. ** ** -Brandon ** ** *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Eric T. Barnett *Sent:* Wednesday, September 18, 2013 2:30 PM *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU *Subject:* [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade ** ** So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that’s still going strong. ** ** Regards, ** ** Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** ** ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Alan Nord, CCNA Infrastructure Manager Information Technology Services Macalester College 1600 Grand Avenue St. Paul, MN 55105 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Greetings, Since we're all sharing.. Kevin G. SeboltDirector, Office of Information TechnologyFranciscan University of Steubenville1235 University Blvd. Steubenville, Ohio 43952-1763Phone: 740-284-5192Fax: 740-284-7228www.franciscan.edu "Eric T. Barnett" ebarn...@astate.edu 9/18/2013 2:29 PM So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that’s still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu Scanned by for virus, malware and spam by SCM appliance ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
On Sep 18, 2013, at 14:40 , Colantuoni, Robert r...@buffalo.edu wrote: We actually have an Akamai cache on campus, which has taken the brunt of the load in the past. It doesn’t seem to be getting the traffic this time around, they are trouble-shooting it now. Yeah, our Akamai server isn't picking up the load this time either. -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: http://www.it.northwestern.edu/ PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Akamai can't decide which cache they want our clients using...they keep switching us back and forth. It'd be awesome if they left it on our 10G link where we have extra capacity. Commodity: FLR/I2 Commercial peering: Joe Rogers University of South Florida ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Here is our last 24H so far we have peeked at about 850 Mbps [cid:image001.png@01CEB48A.ECC58FE0] Peppino Muraca Sr. Network Administrator Stonehill College 508-565-1193 pmur...@stonehill.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Colantuoni, Robert Sent: Wednesday, September 18, 2013 4:17 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade They tracked our problem down to an issue on their side -- they were not properly processing our BGP advertisements. They've fixed it but I haven't seen any change in traffic just yet... --- Robert G Colantuoni Senior Programmer Analyst CIT - Network and Classroom Services SUNY Buffalo r...@buffalo.edumailto:r...@buffalo.edu 716.645.3552 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter P Morrissey Sent: Wednesday, September 18, 2013 4:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDUmailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Ours didn't at first, but eventually kicked in and thankfully took on a good 2 gigs worth. Pete Morrissey -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Julian Y Koh Sent: Wednesday, September 18, 2013 3:48 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDUmailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade On Sep 18, 2013, at 14:40 , Colantuoni, Robert r...@buffalo.edumailto:r...@buffalo.edu wrote: We actually have an Akamai cache on campus, which has taken the brunt of the load in the past. It doesn't seem to be getting the traffic this time around, they are trouble-shooting it now. Yeah, our Akamai server isn't picking up the load this time either. -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: http://www.it.northwestern.edu/ PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. inline: image001.png
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
Ours didn't at first, but eventually kicked in and thankfully took on a good 2 gigs worth. Pete Morrissey -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Julian Y Koh Sent: Wednesday, September 18, 2013 3:48 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade On Sep 18, 2013, at 14:40 , Colantuoni, Robert r...@buffalo.edu wrote: We actually have an Akamai cache on campus, which has taken the brunt of the load in the past. It doesn't seem to be getting the traffic this time around, they are trouble-shooting it now. Yeah, our Akamai server isn't picking up the load this time either. -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: http://www.it.northwestern.edu/ PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
They tracked our problem down to an issue on their side -- they were not properly processing our BGP advertisements. They've fixed it but I haven't seen any change in traffic just yet... --- Robert G Colantuoni Senior Programmer Analyst CIT - Network and Classroom Services SUNY Buffalo r...@buffalo.edu 716.645.3552 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter P Morrissey Sent: Wednesday, September 18, 2013 4:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade Ours didn't at first, but eventually kicked in and thankfully took on a good 2 gigs worth. Pete Morrissey -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Julian Y Koh Sent: Wednesday, September 18, 2013 3:48 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade On Sep 18, 2013, at 14:40 , Colantuoni, Robert r...@buffalo.edu wrote: We actually have an Akamai cache on campus, which has taken the brunt of the load in the past. It doesn't seem to be getting the traffic this time around, they are trouble-shooting it now. Yeah, our Akamai server isn't picking up the load this time either. -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: http://www.it.northwestern.edu/ PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
We peaked at just over 9.5Gbps today on our campus (30 second averages). Jason On 09/18/2013 01:29 PM, Eric T. Barnett wrote: So has anyone else seen a HUGE spike in wireless traffic with the IOS7 update? Our wireless had a dramatic shift at exactly 11:55AM CDT that’s still going strong. Regards, Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 http://wireless.astate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. attachment: rtg-20130918-ios7release.png smime.p7s Description: S/MIME Cryptographic Signature
RE: [WIRELESS-LAN] Bandwidth utilization and IOS7 upgrade
We haven't seen a spike as such, but that’s probably due to the time it was released since we are in Aus. Certainly our app id on the firewalls now shows itunes-base has the largest bandwidth user, it's gone from number 37 yesterday to number 1 since IOS7 release today 6.5 hours -- Jason Cook Technology Services The University of Adelaide, AUSTRALIA 5005 Ph : +61 8 8313 4800
