EVPN advertisements is Type 2

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The most common type of EVPN advertisements is Type 2 messages. These messages are MAC address advertisements. Each VTEP advertises any MAC address learned in its MAC and IP Neighbor table into BGP as a Type 2 EVPN advertisement. Then BGP transfers all these messages across all routing members so that every VTEP knows which MAC address is owned by which other VTEP. VXLAN routing has full VRF support, so that allows you to create…

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Resetting Your IX Codec Password

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Resetting Your IX Codec Password This section contains the following information about managing and troubleshooting password issues on the Cisco TelePresence IX System: Note You must be in the Cisco TelePresence room to read the newly requested passcode that shows on the main display. At each point where the pwrecovery account requires input, the program will wait up to 60 seconds. If nothing is entered, the system will inform you that the entry took too…

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Cisco 9900 Series IP Phones Factory Reset Method

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Unplug any PoE Ethernet cable or power supply With the phone completely powered off, press and hold the # button While still depressing the # button, connect power brick or PoE Ethernet The two top LEDs will be amber The mute light will stay red Immediately let go of the # button (lights will not change or you have failed) Immediately type the sequence 123 456 789 *0# without mistyping Only now will the red mute light go out The phone will boot up in FACTORY RESET…

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Nexsus 7K module Trouble-shooting Commands

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Powering On or Off Specific Module : config # poweroff module 5 # for power off config # no poweroff module 5 # for poweron module   power redundancy-mode power redundancy-mode {combined | insrc-redundant | ps-redundant | redundant} no power redundancy-mode {combined | insrc-redundant | ps-redundant | redundant} show diagnostic result module 18 show module tac-pac bootflash:tech.txt show tech module 1 show tech gold show hardware internal errors module 1 | diff – issue this…

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SNMP Configuration for Vmware Esxi 5/6

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How to enable SNMP on ESXi 5 / 5.5 / 6 There are a few steps involved in getting SNMP functional on ESXi. They go something like this. Set the SNMP community string Enable the SNMP service Add necessary firewall rules Enable the added firewall rule Restart the SNMP daemon esxcli system snmp set –communities PUBLIC esxcli system snmp set –enable true esxcli network firewall ruleset set –ruleset-id snmp –allowed-all true esxcli network firewall ruleset…

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SNR Issues when calling from EXTERNAL PSTN Number

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SNR Issues when calling from EXTERNAL PSTN Number to RING Remote Destination number: Scenario: External PSTN Number —> Gateway —> CUCM—–>IP Phone —-(SNR –> RDP—>RD ) —>Gateway—-> External PSTN Number defined in the RD Normally SNR works for internal extensions only , If you need to allow SNR to work for External Calls  you need to allow below parameters in the CUCM to generate the Call from Called ( Internal Extension ) As Suggested by…

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Notepad++ Find/Replace Regular Expressions

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– [!] finds the exclamation character. – .* selects the rest of the line. – (\+.*)(Item) \+ finds the + character. | .* selects the text after the + up until the word “Item” | Item finds the string “Item” | () allow us to access whatever is inside the parentheses. The first set of parentheses may be accessed with \1 and the second set with \2. – \1\r\n\2 will take + and whatever text…

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Cisco CSIM (Call Simulation) – Hidden IOS Command

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CSIM is an undocumented IOS command.  When configuring a router to act as a voice gateway it is possible to test outbound calls by originating calls from the router.  If the router is configured correctly then the far end number will ring and may be answered. Use the csim start dialstring hidden command to initiate simulated calls to whichever real-world E.164 number is desired. This allows you to determine whether you can properly go offhook…

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POTS-to-POTS Call Routing Considerations bandwidth

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POTS-to-POTS Call Routing Considerations Occasionally, you must route calls between POTS dial peers. CAC might cause this, such as when a call from a PBX is denied admission to the WAN and sent back to the PBX. Or a call from an analog phone might be routed over the PSTN. The ability to switch calls between POTS dial peers is enabled by default on Cisco gateways. Many of the CAC mechanisms that are described in…

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