Subnetting Mask Angka Kecil [1-8]

Sekadar merefresh memory tentang subneting. Ada tutorial di youtube yang cukup baik digunakan sebagai tips and trik [1]. Ia menggunakan tabel berikut:

Misalnya mau menghitung alamat host yang usable di 213.50.111.22/2. Berapakah networknya & broadcast? Berapakah range host-nya? 🙂 Continue reading “Subnetting Mask Angka Kecil [1-8]”

Generate License IOL @eve-ng

3 hari terakhir ini mencoba menginstall eve-ng di laptop baru dari laptop lama. Semua vmdk-nya diexport. Saat membuka lab yg lama, ternyata tidak bisa ping p2p, walaupun cdp dan arp terbentuk. Aneh. Akhirnya dikasih masukan sama temen, coba install eve baru lagi.  Eve lama versi yang ada di laptop adalah versi 2.0.3-89, eve baru versi *-95.

Saya coba create lab dengan ios 7200 dan berhasil ping p2p. Lalu export beberapa lab yg ada di versi eve *-89 dimana terdapat IOL, masalah muncul dimana routernya tidak bisa distart. Dicoba ngutak-ngatik iourc file, namun tidak berhasil. Generate beberapa license, juga nihil. Intinya, system tidak bisa membaca iourc file alias lisensinya bermasalah. Continue reading “Generate License IOL @eve-ng”

Install IOU on GNS3 VM

GNS3 sudah sejak lama digunakan sebagai simulator networking, sejak versi 0.x hingga saat ini. Di versi awal, IOS yang disimulasikan diambil/dijalankan di local komputer, namun sejak v1.x nampaknya GNS3 memberikan opsi lain agar IOS tersebut dijalankan melalui VMware atau Virtual Box, dimana IOS-nya ditaro di VMware/VB.

Saat mau menyimulasikan L2 Switch, Continue reading “Install IOU on GNS3 VM”

Commands in NCS 5500

There are some cli’s that I got from TAC and BU when troubleshooting Cisco NCS 5500 to find out any error or packet drop on line card. Here is:

TAC:

show controllers npu diag counters graphical instance all location 0/0/CPU0
show controllers npu stat counters-all detail instance all location 0/0/CPU0 | exclude ” 0″
show controllers npu stats traps-all instance all location 0/0/CPU0
show controllers fia diagshell 3 “diag counter g c” location 0/0/CPU0
show controllers npu stats voq base 1096 instance 3 location 0/0/CPU0
show controllers npu stats voq base 1088 instance 3 location 0/0/CPU0
show captured packets ingress location 0/0/CPU0
show captured packets ingress hexdump location 0/0/CPU0
show captured packets ingress interface Bundle-Ether40 location 0/0/CPU0
show spp node-counters location 0/0/CPU0
show netio idb Bundle-Ether30
show asic-errors all detail location 0/0/CPU0

show controllers npu voq-usage interface tenGigE 0/0/0/0/0 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/0/1 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/0/2 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/1/0 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/1/1instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/1/2 instance all location 0/0/CPU0

show controllers npu voq-usage interface tenGigE 0/0/0/10/0 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/10/1 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/10/2 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/11/0 instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/11/1instance all location 0/0/CPU0
show controllers npu voq-usage interface tenGigE 0/0/0/11/2 instance all location 0/0/CPU0

show tech
show tech sysdb
show tech pfi
show tech ipinfra
show tech vrrp

Continue reading “Commands in NCS 5500”