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  • Juniper SRX Old and New DHCP, with Problems – Majornetwork
    was missing right away The DHCP client still had all the necessary information admin srx100 show dhcp client binding detail Client Interface fe 0 0 0 0 Hardware Address 88 e0 f3 xx xx xx State BOUND LOCAL CLIENT STATE BOUND Lease Expires 2014 11 30 18 37 40 EET Lease Expires in 14330 seconds Lease Start 2014 11 30 14 37 40 EET Server Identifier 193 229 28 26 Client IP Address 88 xx xx xx Update Server Yes DHCP options Name dhcp lease time Value 4 hours Name server identifier Value 193 229 28 26 Name router Value 88 yy yy yy Name name server Value 212 54 0 3 193 229 0 42 Name subnet mask Value 255 255 240 0 Name domain name Value elisa laajakaista fi I then restarted DHCP admin srx100 restart dhcp service gracefully Dynamic Host Configuration Protocol process started pid 1583 admin srx100 show log messages Nov 30 14 43 51 srx100 init dhcp service PID 1563 exited with status 0 Normal Exit Nov 30 14 43 51 srx100 init dhcp service PID 1583 started Nov 30 14 43 51 srx100 init l2cpd service PID 1585 started Nov 30 14 43 51 srx100 init can not access usr sbin hostname cached No such file or directory Nov 30 14 43 51 srx100 init hostname caching process PID 0 started Nov 30 14 43 51 srx100 init security intelligence PID 1587 started Nov 30 14 43 51 srx100 init can not access usr sbin ipmid No such file or directory Nov 30 14 43 51 srx100 init ipmi PID 0 started Nov 30 14 43 52 srx100 init security intelligence PID 1587 exited with status 0 Normal Exit Nov 30 14 43 52 srx100 init security intelligence PID 1589 started Nov 30 14 43 53 srx100 init l2cpd service PID 1585 exited with status 0 Normal Exit Nov 30 14 43 53 srx100 init l2cpd service PID 1590 started Nov 30 14 43 57 srx100 init security intelligence PID 1589 exited with status 0 Normal Exit Nov 30 14 43 57 srx100 init security intelligence PID 1593 started Nov 30 14 43 59 srx100 init l2cpd service PID 1590 exited with status 0 Normal Exit Nov 30 14 43 59 srx100 init l2cpd service PID 1594 started admin srx100 show route 0 0 0 0 inet 0 10 destinations 11 routes 10 active 0 holddown 0 hidden Active Route Last Active Both 0 0 0 0 0 Access internal 12 00 00 12 to 88 115 160 1 via fe 0 0 0 0 However when committing a configuration change the default route was not disappearing anymore admin srx100 show log messages last 10 Nov 30 15 10 12 srx100 init dhcp service PID 1643 exited with status 1 Nov 30 15 10 12 srx100 init dhcp service PID 1671 started admin srx100 show route 0 0 0 0 inet 0 12 destinations 12 routes 12 active 0 holddown 0 hidden Active Route

    Original URL path: https://majornetwork.net/2014/11/juniper-srx-old-and-new-dhcp-with-problems/?replytocom=3003 (2016-04-25)
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  • Majornetwork – Page 3 – Gateway of last resort is not set
    own virtual server platform installed at home for testing purposes The easy way would be to just run the free VMware Player on the laptop but I want to play with the free VMware vSphere Hypervisor as well Apparently vSphere Hypervisor is the engine that has been known as ESXi Read Post IOS 15 1SY Product Bulletin and New BFD Features Markku Leiniö November 23 2012 Networking Comments As a continuation to my previous post about IOS 15 1SY and 12 2SX here is the product bulletin for IOS 15 1SY for Sup720 and Sup2T http www cisco com en US prod collateral iosswrel ps8802 ps11821 ps11846 product bulletin c25 717747 ps11845 Products Bulletin html It presents the highlights in a different way to the Release Notes The most interesting new features for me personally are the following BFD Bidirectional Forwarding Detection Static Route Support Read Post Juniper SRX100 Junos Upgrade Process Markku Leiniö October 31 2012 Networking 3 Comments Upgrading Junos on Juniper SRX100 JTAC Recommended Junos Software Versions http kb juniper net InfoCenter index page content id KB21476 smlogin true Junos downloads for SRX100 https www juniper net support downloads p srx100 Copy the new Junos image in a USB memory stick Plug the USB stick to SRX100 On SRX100 start the unix shell check the USB stick device name and mount the stick admin srx100 start shell dmesg umass1 Read Post Catalyst 6500 IOS 15 1SY and 12 2SX Markku Leiniö October 28 2012 Networking 1 Comment Feel free to bash on Catalyst 6500 based on this post as well I know there are plenty of you who like to complain about this old work horse On the other hand there are also plenty of us who run existing installations and designs and still see Cat6500 routing in the network very Read Post Juniper SRX100 Traceoptions Performance Markku Leiniö September 8 2012 Networking Comments I have a 50Mbit Internet connection here at home and I m having a Juniper SRX100 routing it I just noted that I did not remember to remove the traceoptions configuration and it was affecting the performance on the SRX100 Here is the quick summary and comparison With the following traceoptions edit admin srx100 show security flow Read Post NX OS Releases and Platforms Markku Leiniö July 20 2012 Networking 4 Comments The Cisco NX OS releases for different platforms are identified interestingly Let s start with the mother of all NX OS releases x y z for Nexus 7000 Here x is the major release or software train y is the minor release and z is the maintenance release An example of the version number is 5 2 5 See Cisco NX OS Read Post Configuring vPC to Suspend Orphan Ports Markku Leiniö June 28 2012 Networking 5 Comments As you should know simplified rule Whenever the vPC peer link goes down the vPC secondary switch brings down all its connected vPC ports assuming those vPCs are up in the vPC primary

    Original URL path: https://majornetwork.net/page/3/ (2016-04-25)
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  • Catalyst 6500 IOS 15.1SY and 12.2SX – Majornetwork
    0 1 SY2 and 12 2 33 SXJ3 15 1SY is supported on both Sup720 and Sup2T supervisor modules Previously released SY versions 12 2SY and 15 0SY were only supported on Sup2T See the Release Notes for Cisco IOS Release 15 1SY for more information on the supported hardware and features On the 12 2SX train the latest releases seem to be 12 2 33 SXJ4 and 12 2 33 SXI10 at the moment If you are really interested in the IOS releases and support for Catalyst 6500 you should also be aware of these documents Cisco IOS Software Release 12 2SX and 12 2SY on the Cisco Catalyst 6500 Series 12 2 33 SXJ End of extended maintenance December 31 2013 End of critical maintenance September 30 2015 12 2 33 SXI End of extended maintenance September 13 2012 already gone End of critical maintenance September 13 2014 End of support August 31 2017 12 2 33 SXH It is already End of extended maintenance End of sale and End of critical maintenance End of support will be in March 2016 Cisco IOS Software Major Release 15SY on Cisco Catalyst 6500 Series Switches 15 0 1 SY End of extended maintenance October 2013 End of critical maintenance April 2014 Updated October 28 2012 15 50 Tags 15 0SY 15 1SY cat6500 catalyst 6500 cisco sup2t sup720 sxi sxj Previous Post Next Post 1 Comment Add a Comment Pingback IOS 15 1SY Product Bulletin and New BFD Features Majornetwork Leave a Reply Cancel reply Search for Markku Leiniö Senior Network Architect Senior Technology Consultant and CCIE 26438 Routing Switching in Finland Majornetwork on Twitter Markku Leiniö on Google Your IPv4 IPv6 Status You are using IPv4 address 81 198 240 36 Recent Posts majornetwork net Is Now TLS Enabled

    Original URL path: https://majornetwork.net/2012/10/catalyst-6500-ios-15-1sy-and-12-2sx/ (2016-04-25)
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  • 15.0(1)SY1 is out – Majornetwork
    ios 15 0SY release notes html Updated February 25 2012 10 51 Tags 15 0SY cat6500 catalyst 6500 sup2t Previous Post Next Post Leave a Reply Cancel reply Search for Markku Leiniö Senior Network Architect Senior Technology Consultant and CCIE 26438 Routing Switching in Finland Majornetwork on Twitter Markku Leiniö on Google Your IPv4 IPv6 Status You are using IPv4 address 81 198 240 36 Recent Posts majornetwork net Is Now TLS Enabled IPsec VPN Tunnel between F5 BIG IP and Juniper SRX SoftEther VPN with a VPN Address Pool Juniper SRX IPsec LAN to LAN VPN Part 2 Juniper SRX IPsec LAN to LAN VPN Part 1 Tags 15 0SY 15 1SY ba bridge assurance cat6500 catalyst 6500 cisco cli cmp console cygwin dual homed esxi fabric extender fabricpath fast hello fex hypervisor ios ipsec ipv6 issu juniper junos lacp linux nexus 5000 nexus 5500 nexus 7000 nx os private vlan pvlan qsfp srx srx100 sup2t sup32 sup720 switch profile sxi sxj vmware vpc vpn vsphere Archives October 2015 July 2015 May 2015 February 2015 January 2015 December 2014 November 2014 August 2014 June 2014 May 2014 September 2013 August 2013 July 2013 June 2013 April 2013 March 2013

    Original URL path: https://majornetwork.net/2012/02/15-01sy1-is-out/ (2016-04-25)
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  • Catalyst 6500 IOS 15.0(1)SY1 almost out – Majornetwork
    3 NAM 3 Support for the Cisco Catalyst 6500 Series ASA Services Module ASA SM More than 40 new software and hardware features For Sup32 and Sup720 the latest IOS is 12 2 33 SXJ2 released in December 2011 http www cisco com en US docs switches lan catalyst6500 ios 12 2SX release notes overview html Updated February 15 2012 19 11 Tags 15 0SY cat6500 catalyst 6500 sup2t sup32 sup720 sxj Previous Post Next Post Leave a Reply Cancel reply Search for Markku Leiniö Senior Network Architect Senior Technology Consultant and CCIE 26438 Routing Switching in Finland Majornetwork on Twitter Markku Leiniö on Google Your IPv4 IPv6 Status You are using IPv4 address 81 198 240 36 Recent Posts majornetwork net Is Now TLS Enabled IPsec VPN Tunnel between F5 BIG IP and Juniper SRX SoftEther VPN with a VPN Address Pool Juniper SRX IPsec LAN to LAN VPN Part 2 Juniper SRX IPsec LAN to LAN VPN Part 1 Tags 15 0SY 15 1SY ba bridge assurance cat6500 catalyst 6500 cisco cli cmp console cygwin dual homed esxi fabric extender fabricpath fast hello fex hypervisor ios ipsec ipv6 issu juniper junos lacp linux nexus 5000 nexus 5500 nexus

    Original URL path: https://majornetwork.net/2012/02/catalyst-6500-ios-15-01sy1-almost-out/ (2016-04-25)
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  • Cat6500 IOS Notes – Majornetwork
    have been out on 10 5 this means 5th of October for us who don t like the unnatural syntax of mm dd but actually it came out on 3rd of November http www cisco com en US docs switches lan catalyst6500 ios 12 2SX release notes overview html 12 2 33 SXJ2 is not out yet Btw here is one slideset about the latest Cat6500 hardware goodies http www cisco com web TH assets docs seminar 201109 AchitectTechUpdate Introducing the New Cat6k pdf Updated November 8 2011 22 29 Tags 15 0SY cat6500 catalyst 6500 ios sup2t sxi sxj Previous Post Next Post Leave a Reply Cancel reply Search for Markku Leiniö Senior Network Architect Senior Technology Consultant and CCIE 26438 Routing Switching in Finland Majornetwork on Twitter Markku Leiniö on Google Your IPv4 IPv6 Status You are using IPv4 address 81 198 240 36 Recent Posts majornetwork net Is Now TLS Enabled IPsec VPN Tunnel between F5 BIG IP and Juniper SRX SoftEther VPN with a VPN Address Pool Juniper SRX IPsec LAN to LAN VPN Part 2 Juniper SRX IPsec LAN to LAN VPN Part 1 Tags 15 0SY 15 1SY ba bridge assurance cat6500 catalyst 6500

    Original URL path: https://majornetwork.net/2011/11/cat6500-ios-notes/ (2016-04-25)
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  • IOS 15.1SY Product Bulletin and New BFD Features – Majornetwork
    that all the new service provider connections have long been L3 interfaces now but BFD has not been used anyway You can read more about BFD for example here http www cisco com en US docs ios xml ios iproute bfd configuration 15 sy irb bi fwd det html GUID E83C7212 4611 45D8 9304 B9A7C49B78DE The IP Routing BFD Configuration Guide Cisco IOS Release 15SY www cisco com is somewhat irritating to read even though the guide is specifically titled to be for 15 xSY train it still talks a lot about other platforms than Catalyst 6500 or even Cisco 7600 even though 15 xSY is for Catalyst 6500 only Apparently they just want to re use the material as much as possible while still changing the document titles to give the readers a bit better confidence that the document is the correct one for their platform Yeah there is the disclaimer in the title page of the guide Anyway the BFD configuration guide does not give any hints about SVI VLAN interface configurations regardless of the announcement in the bulletin For Cisco 7600 15 0S the documentation is available in Configuring Bidirectional Forwarding and Detection over Switched Virtual Interface www cisco com Let s see Updated November 23 2012 10 28 Tags 15 1SY bfd cat6500 catalyst 6500 sup2t sup720 svi Previous Post Next Post Leave a Reply Cancel reply Search for Markku Leiniö Senior Network Architect Senior Technology Consultant and CCIE 26438 Routing Switching in Finland Majornetwork on Twitter Markku Leiniö on Google Your IPv4 IPv6 Status You are using IPv4 address 81 198 240 36 Recent Posts majornetwork net Is Now TLS Enabled IPsec VPN Tunnel between F5 BIG IP and Juniper SRX SoftEther VPN with a VPN Address Pool Juniper SRX IPsec LAN to LAN VPN

    Original URL path: https://majornetwork.net/2012/11/ios-15-1sy-product-bulletin-and-new-bfd-features/ (2016-04-25)
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  • Designing Nexus 5500 for Distribution Layer – Majornetwork
    supervisor board reboots to load the new software The reboot takes something like 80 seconds to complete While the control plane reboots the switch is unable to send or receive anything control plane related frames And while this is the case it may or may not have some effect on the neighboring devices If the conditions are not right then NX OS refuses to do ISSU and reverts back to old style just reboot all method which obviously works but causes some traffic interrupts About the cases I mentioned above they all create some exceptions for the ISSU Connecting access switches As the Nexus switch is unable to send BPDUs normally during the ISSU it is directly specified that if you have any STP designated ports on the switch other than the vPC peer link then ISSU is not supported And that would be the case if you connect access switches on your Nexus 5500 and your STP root is somewhere in your Nexus 5500s or upstream from that Access switches rarely are STP roots aren t they Using LACP fast hellos Since an LACPDU is expected by the other party in 3 seconds at most using LACP fast hellos is not compatible with ISSU Using BA Again since the BPDUs are regularly expected by the other party using BA is not compatible with ISSU BA can be used in the vPC peer link however because the vPC switches communicate with each other about the ISSU What can you do I will be connecting access switches to Nexus 5500s in vPC for sure and I would like to use ISSU as well so I have some ideas For connecting the access switches with LACP the rule for using LACP fast hellos is quite clear don t Just use the normal timers and ISSU will be possible because the Nexus 5500 is back online in 80 seconds or so before the LACP keepalive timers expire on the neighboring devices About using BA it is also better not to use it for access switch connections at all Not all access switches even support it I guess About the STP designated port limitation You could always disable STP altogether because there is only a single logical link port channel between the switches but I really don t recommend that RSTP MSTP in the background provides a safety measure for some incorrect physical connections so let s keep that running Updated 09 Jan 2012 Now this is totally incorrect information starting here Instead before starting the ISSU just go and shutdown the ports on Nexus 5500 that are connecting to the downstream access switches This assumes that all the access switches are properly connected with port channels to two Nexus 5500 at the same time During the uplink port shutdown the access switches will continue to use the other member of the port channel uplink and no harm is done end of bullshit That is not the case Even if you shutdown the other

    Original URL path: https://majornetwork.net/2011/08/designing-nexus-5500-for-distribution-layer/ (2016-04-25)
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