This document discusses how to use cEOS as DUT neighbor device.
cEOS is the container-based EOS. All the software running inside the container. Compared with vEOS, cEOS has much smaller memory footprint.
Follow instruction to setup cEOS testbed.
In below example, there are four cEOS containers.
lgh@jenkins-worker-15:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fe48c207a51c ceosimage:4.23.2F-1 "/sbin/init systemd.…" 8 days ago Up 8 days ceos_vms6-1_VM0103
52297010e66a ceosimage:4.23.2F-1 "/sbin/init systemd.…" 8 days ago Up 8 days ceos_vms6-1_VM0102
8dd95269b312 ceosimage:4.23.2F-1 "/sbin/init systemd.…" 8 days ago Up 8 days ceos_vms6-1_VM0101
3a50dd481bfb ceosimage:4.23.2F-1 "/sbin/init systemd.…" 8 days ago Up 8 days ceos_vms6-1_VM0100
b91b48145def debian:jessie "bash" 8 days ago Up 8 days net_vms6-1_VM0103
d1ff26d84249 debian:jessie "bash" 8 days ago Up 8 days net_vms6-1_VM0102
1489f52b9617 debian:jessie "bash" 8 days ago Up 8 days net_vms6-1_VM0101
ce1214a008ed debian:jessie "bash" 8 days ago Up 8 days net_vms6-1_VM0100
A cEOS containers consumes around 1G memory.
lgh@jenkins-worker-15:~$ docker stats --no-stream
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS 6
fe48c207a51c ceos_vms6-1_VM0103 2.04% 970.9MiB / 125.9GiB 0.75% 0B / 0B 365MB / 55.8GB 138
52297010e66a ceos_vms6-1_VM0102 2.19% 965.4MiB / 125.9GiB 0.75% 0B / 0B 237MB / 55.6GB 139
8dd95269b312 ceos_vms6-1_VM0101 1.93% 980.9MiB / 125.9GiB 0.76% 0B / 0B 300MB / 55.9GB 138
3a50dd481bfb ceos_vms6-1_VM0100 2.05% 970.2MiB / 125.9GiB 0.75% 0B / 0B 365MB / 56.1GB 138
We first create a base container net_${testbed_name}_${vm_name}, inject six ethernet ports into the base container,
and then start cEOS ceos_${testbed_name}_${vm_name} container on top of the base container. The six ethernet ports
are used for
- 1 management port
- 4 front panel ports to DUT
- 1 backplane port to PTF docker
+------------+ +----+
| cEOS Ma0 +--------- VM0100-m ---+ br |
| | +----+
| |
| | +--------------+
| Et1 +----------VM0100-t0---+ br-VM0100-0 |
| | +--------------+
| |
| | +--------------+
| Et2 +----------VM0100-t1---+ br-VM0100-1 |
| | +--------------+
| |
| | +--------------+
| Et3 +----------VM0100-t2---+ br-VM0100-2 |
| | +--------------+
| |
| | +--------------+
| Et4 +----------VM0100-t3---+ br-VM0100-3 |
| | +--------------+
| |
| | +--------------+
| Et5 +----------VM0100-back--+ br-b-vms6-1 |
| | +--------------+
+------------+
The /mnt/flash in cEOS container is mount to /data/ceos/ceos_${testbed_name}_${vm_name} on the host. The /mnt/flash
contiains the configuration file and logs.
lgh@jenkins-worker-15:~$ ls -l /data/ceos/ceos_vms6-1_VM0100/
total 40
-rw-rw-r--+ 1 root root 924 Mar 31 07:35 AsuFastPktTransmit.log
drwxrwxr-x+ 2 root root 4096 Mar 31 03:31 Fossil
-rw-rw-r--+ 1 root root 568 Mar 31 07:35 SsuRestore.log
-rw-rw-r--+ 1 root root 568 Mar 31 07:35 SsuRestoreLegacy.log
drwxr-xr-x+ 4 897 88 4096 Mar 31 07:35 archive
drwxrwx---+ 3 root root 4096 Mar 18 06:12 debug
drwxrwxr-x+ 2 root root 4096 Mar 18 06:12 fastpkttx.backup
-rw-rw-r--+ 1 root root 180 Mar 31 07:35 kickstart-config
drwxrwxr-x+ 3 root root 4096 Apr 8 09:11 persist
-rw-rwxr--+ 1 root root 1915 Mar 18 06:12 startup-config
There are two ways to get into cEOS container
- docker exec
lgh@jenkins-worker-15:~$ docker exec -it ceos_vms6-1_VM0100 Cli
ARISTA01T1>show int status
Port Name Status Vlan Duplex Speed Type Flags Encapsulation
Et1 connected in Po1 full unconf EbraTestPhyPort
Et2 connected 1 full unconf EbraTestPhyPort
Et3 connected 1 full unconf EbraTestPhyPort
Et4 connected 1 full unconf EbraTestPhyPort
Et5 backplane connected routed full unconf EbraTestPhyPort
Ma0 connected routed full 10G 10/100/1000
Po1 connected routed full unconf N/A
ARISTA01T1>
- ssh
lgh@jenkins-worker-15:~$ ssh [email protected]
Password:
ARISTA01T1>show int status
Port Name Status Vlan Duplex Speed Type Flags Encapsulation
Et1 connected in Po1 full unconf EbraTestPhyPort
Et2 connected 1 full unconf EbraTestPhyPort
Et3 connected 1 full unconf EbraTestPhyPort
Et4 connected 1 full unconf EbraTestPhyPort
Et5 backplane connected routed full unconf EbraTestPhyPort
Ma0 connected routed full 10G 10/100/1000
Po1 connected routed full unconf N/A
ARISTA01T1>