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Next Generation Network Engineer
Posted 11 months ago

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Next Generation Network Engineer
Posted 1 year ago

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Next Generation Network Engineer
Posted 1 year ago

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Next Generation Network Engineer
Posted 1 year ago

L2VPN EVPN Route Type Cheat Sheet [ reference Cisco Live]

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Next Generation Network Engineer
Posted 1 year ago

Ansible error:-

Unable to negotiate with 192.168.1.10 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1

Solution:-

/home/vikasvsnl/.ssh
Create config file with below content under .ssh directory

vikasvsnl@SYN-ITD322:~/.ssh$ cat config
HostkeyAlgorithms ssh-dss,ssh-rsa
KexAlgorithms +diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
Ciphers aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr


vikasvsnl@SYN-ITD322:~/.ssh$ ls -lrt
total 13
-rw------- 1 vikasvsnl vikasvsnl 2610 Dec 14 12:32 id_rsa
-rw-r--r-- 1 vikasvsnl vikasvsnl 574 Dec 14 12:32 id_rsa.pub
-rw-r--r-- 1 vikasvsnl vikasvsnl 442 Jan 12 11:54 known_hosts.old
-rw-r--r-- 1 vikasvsnl vikasvsnl 187 Jan 18 11:37 config
-rw-r--r-- 1 vikasvsnl vikasvsnl 2456 Jan 18 13:43 known_hosts

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Next Generation Network Engineer
Posted 1 year ago

EVPN Building block


EVPN - Ethernet VPN
EVI-- EVPN Instance - A EVPN instance spanning the PE devices participating in that EVPN
MAC-VRF-- A vrf for mac-address on PE
DF - Designated Forwarder--- it will send the BUM traffic towards CE on a particular ethernet segment.
ES - Ethernet segment -- when CE device is connected t more than one PE .then a set of ethernet links is called as ES.
VTEP- VXLAN tunnel end point
ESI label -- uses ESI labels to identify the BUM traffic sourced from a specified ES

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