Difference between revisions of "Monitoring"
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| + | ==Check Firewall== | ||
| + | |||
| + | * UDP | ||
| + | <pre> | ||
| + | [ ~]$ nc -v -u -z -w 3 targethost 25826 | ||
| + | Ncat: Version 7.50 ( https://nmap.org/ncat ) | ||
| + | Ncat: Connected to 192.168.1.2:25826. | ||
| + | Ncat: UDP packet sent successfully | ||
| + | Ncat: 1 bytes sent, 0 bytes received in 2.03 seconds. | ||
| + | [ ~]$ nc -v -u -z -w 3 targethost 25828 | ||
| + | Ncat: Version 7.50 ( https://nmap.org/ncat ) | ||
| + | Ncat: Connected to 192.168.1.2:25828. | ||
| + | Ncat: Connection refused. | ||
| + | </pre> | ||
| + | |||
===WAN monitoring - Ethernet OAM - Y.1731=== | ===WAN monitoring - Ethernet OAM - Y.1731=== | ||
Revision as of 04:29, 12 May 2020
Check Firewall
- UDP
[ ~]$ nc -v -u -z -w 3 targethost 25826 Ncat: Version 7.50 ( https://nmap.org/ncat ) Ncat: Connected to 192.168.1.2:25826. Ncat: UDP packet sent successfully Ncat: 1 bytes sent, 0 bytes received in 2.03 seconds. [ ~]$ nc -v -u -z -w 3 targethost 25828 Ncat: Version 7.50 ( https://nmap.org/ncat ) Ncat: Connected to 192.168.1.2:25828. Ncat: Connection refused.
WAN monitoring - Ethernet OAM - Y.1731
- https://app.netrounds.com/static/2.26/support/task-types/refl/y1731-eth-slm.html
- https://www.cisco.com/c/en/us/support/docs/asynchronous-transfer-mode-atm/operation-administration-maintenance-oam/117457-technote-cfm-00.html
- https://www.juniper.net/documentation/en_US/junos/topics/topic-map/oam-service-overview.html
Essentially a formalised version of Cisco SAA probes You really want to use the two way delay probes but this requires hardware at both ends with accurate clocks and support for it.
