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ZTP on Catalyst 3850 gives error message <urlopen error [Errno 128] Network is unreachable>

yoongseong
Level 1
Level 1

‎10-10-2018 04:36 AM

Hello,

 

I am developing a Python script to be executed by Catalyst 3850 ZTP during boot up. I am seeing different error when I am connecting the config server to (1) Management port Gi0/0 and (2) Data port Gi1/0/1. I run the same Python script on Cisco ISR4431 and have no problem to make the ZTP work.

 

Scenario 1: Config server connects to management Port Gi0/0

  • Issue #1 - Loading of Python script happened without seeing "System Configuration Dialog", which is different from what has been documented in the Cisco Programmability Guide. It then gives the error message "pnp._pnp.PnPSocketError: SocketError: Socket /cisco/nginx_shared/pnp_python.sock not present. Make sure to enable http server" when it hits the first line of Python script calling cli Python module. The actual output as below:

 

%INIT: waited 0 seconds for NVRAM to be available

SETUP: new interface Vlan1 placed in "shutdown" state
Loading http://192.168.88.88/ztp_python.py 
Loading http://192.168.88.88/ztp_python.py 


Press RETURN to get started!


*Oct  9 19:37:39.657: %SMART_LIC-6-AGENT_READY: Smart Agent for Licensing is initialized
*Oct  9 19:37:40.317: %IOSXE_RP_NV-3-NV_ACCESS_FAIL: Initial read of NVRAM contents failed
*Oct  9 19:37:40.438: %IOSXE_RP_NV-3-BACKUP_NV_ACCESS_FAIL: Initial read of backup NVRAM contents failed
*Oct  9 19:37:57.354: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Oct  9 19:37:58.386: %LINK-3-UPDOWN: Interface Lsmpi18/3, changed state to up
*Oct  9 19:37:58.389: %LINK-3-UPDOWN: Interface EOBC18/1, changed state to up
*Oct  9 19:37:58.391: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to down
*Oct  9 19:37:58.391: %LINK-3-UPDOWN: Interface LIIN18/2, changed state to up
*Oct  9 19:37:58.524: WCM-PKI-SHIM: buffer allocation failed for SUDI support check
*Oct  9 19:37:58.524: PKI/SSL unable to send Sudi support to WCM
*Oct  9 19:37:41.867: %STACKMGR-1-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr:  Stack port 1 on Switch 1 is nocable 
*Oct  9 19:37:41.867: %STACKMGR-1-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr:  Stack port 2 on Switch 1 is down 
*Oct  9 19:37:41.867: %STACKMGR-1-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr:  Stack port 2 on Switch 1 is nocable 
*Oct  9 19:37:41.867: %STACKMGR-6-SWITCH_ADDED: Switch 1 R0/0: stack_mgr:  Switch 1 has been added to the stack. 
*Oct  9 19:37:41.867: %STACKMGR-6-SWITCH_ADDED: Switch 1 R0/0: stack_mgr:  Switch 1 has been added to the stack. 
*Oct  9 19:37:41.867: %STACKMGR-6-SWITCH_ADDED: Switch 1 R0/0: stack_mgr:  Switch 1 has been added to the stack. 
*Oct  9 19:37:41.867: %STACKMGR-6-ACTIVE_ELECTED: Switch 1 R0/0: stack_mgr:  Switch 1 has been elected ACTIVE. 
*Oct  9 19:37:59.496: %LINEPROTO-5-UPDOWN: Line protocol on Interface Lsmpi18/3, changed state to up
*Oct  9 19:37:59.499: %LINEPROTO-5-UPDOWN: Line protocol on Interface EOBC18/1, changed state to up
*Oct  9 19:37:59.500: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
*Oct  9 19:37:59.500: %LINEPROTO-5-UPDOWN: Line protocol on Interface LIIN18/2, changed state to up
*Oct  9 19:38:00.392: %HMANRP-6-HMAN_IOS_CHANNEL_INFO: HMAN-IOS channel event for switch 1: EMP_RELAY: Channel UP!
*Oct  9 19:38:02.840: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Oct  9 19:38:03.391: %IOSXE_MGMTVRF-6-CREATE_SUCCESS_INFO: Management vrf Mgmt-vrf created with ID 1, ipv4 table-id 0x1, ipv6 table-id 0x1E000001
*Oct  9 19:38:21.848: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
*Oct  9 19:38:22.102: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
*Oct  9 19:38:22.764: %SYS-5-RESTART: System restarted --
Cisco IOS Software [Everest], Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 16.6.2, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2017 by Cisco Systems, Inc.
Compiled Wed 01-Nov-17 04:27 by mcpre
*Oct  9 19:38:23.018: AUTOINSTALL: Obtain siaddr 192.168.88.88 (as config server)
*Oct  9 19:38:24.066: [IOX DEBUG] Guestshell start API is being invoked

*Oct  9 19:38:24.066: [IOX DEBUG] provided idb is mgmt interface

*Oct  9 19:38:24.066: [IOX DEBUG] Setting up guestshell to use mgmt-intf

*Oct  9 19:38:24.066: [IOX DEBUG] Setting up chasfs for iox related activity

*Oct  9 19:38:24.067: [IOX DEBUG] Setting up for iox pre-clean activity if needed

*Oct  9 19:38:24.067: [IOX DEBUG] Waiting for iox pre-clean setup to take affect

*Oct  9 19:38:24.067: [IOX DEBUG] Waited for 1 sec(s) for iox pre-clean setup to take affect

*Oct  9 19:38:24.067: [IOX DEBUG] Auto-configuring iox feature

*Oct  9 19:38:24.074: [IOX DEBUG] Waiting for CAF and ioxman to be up, in that order

*Oct  9 19:38:24.186: %LINK-3-UPDOWN: Interface GigabitEthernet1/1/1, changed state to down
*Oct  9 19:38:24.186: %LINK-3-UPDOWN: Interface GigabitEthernet1/1/2, changed state to down
*Oct  9 19:38:24.189: %LINK-3-UPDOWN: Interface GigabitEthernet1/1/3, changed state to down
*Oct  9 19:38:24.189: %LINK-3-UPDOWN: Interface GigabitEthernet1/1/4, changed state to down
*Oct  9 19:38:24.191: %LINK-3-UPDOWN: Interface TenGigabitEthernet1/1/1, changed state to down
*Oct  9 19:38:24.192: %LINK-3-UPDOWN: Interface TenGigabitEthernet1/1/2, changed state to down
*Oct  9 19:38:24.194: %LINK-3-UPDOWN: Interface TenGigabitEthernet1/1/3, changed state to down
*Oct  9 19:38:24.249: %LINK-3-UPDOWN: Interface TenGigabitEthernet1/1/4, changed state to down
*Oct  9 19:38:24.666: %UICFGEXP-6-SERVER_NOTIFIED_START: Switch 1 R0/0: psd:  Server iox has been notified to start
*Oct  9 19:38:25.186: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/1, changed state to down
*Oct  9 19:38:25.186: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to down
*Oct  9 19:38:25.189: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/3, changed state to down
*Oct  9 19:38:25.190: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/4, changed state to down
*Oct  9 19:38:25.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/1, changed state to down
*Oct  9 19:38:25.192: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/2, changed state to down
*Oct  9 19:38:25.194: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/3, changed state to down
*Oct  9 19:38:25.249: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/4, changed state to down
*Oct  9 19:38:25.326: %SYS-6-BOOTTIME: Time taken to reboot after reload =  364 seconds
*Oct  9 19:38:28.095: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:33.123: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:38.125: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:43.297: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:49.304: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:54.304: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:38:59.305: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:04.307: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:09.307: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:14.311: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:19.312: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:24.313: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:29.316: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:34.316: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:39.317: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:44.347: [IOX DEBUG] Waiting for another 5 secs

*Oct  9 19:39:49.348: [IOX DEBUG] Waiting for another 5 secs
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable

*Oct  9 19:39:53.349: [IOX DEBUG] Waited for 89 sec(s) for CAF and ioxman to come up

*Oct  9 19:39:53.350: [IOX DEBUG] Validating if CAF and ioxman are running

*Oct  9 19:39:53.350: [IOX DEBUG] CAF and ioxman are up and running

*Oct  9 19:39:53.350: [IOX DEBUG] Building the simple mgmt-intf enable command string

*Oct  9 19:39:53.350: [IOX DEBUG] Enable command is: request platform software iox-manager app-hosting guestshell enable

*Oct  9 19:39:53.350: [IOX DEBUG] Issuing guestshell enable command and waiting for it to be up
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable

*Oct  9 19:39:57.410: [IOX DEBUG] Waiting for another 5 secs
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable

*Oct  9 19:40:02.467: [IOX DEBUG] Waiting for another 5 secs
Guestshell enabled successfully

*Oct  9 19:40:34.868: [IOX DEBUG] Checking for guestshell mount path

*Oct  9 19:40:34.868: [IOX DEBUG] Validating if guestshell is ready for use

*Oct  9 19:40:34.868: [IOX DEBUG] Guestshell enabled successfully


 *** ZTP Day0 Python Script *** 




 *** Configuring... *** 


Traceback (most recent call last):
  File "/bootflash/downloaded_script.py", line 155, in <module>
    serials = get_serials()
  File "/bootflash/downloaded_script.py", line 13, in get_serials
    inventory = cli('show inventory | format')
  File "/usr/lib/python2.7/site-packages/cli/__init__.py", line 253, in cli
    response = pnp.listener.cli_exec_request(command)
  File "/usr/lib/python2.7/site-packages/pnp/_pnp.py", line 493, in cli_exec_request
    raise PnPSocketError()
pnp._pnp.PnPSocketError: SocketError: Socket /cisco/nginx_shared/pnp_python.sock not present. Make sure to enable http server


Loading http://192.168.88.88/ztp_python.py 
Loading http://192.168.88.88/ztp_python.py 
*Oct  9 19:40:41.293: SHELL-EXECUTION: error executing the python script: return code 1 (script itself stored in file "/bootflash/downloaded_script.py")
*Oct  9 19:40:41.293: SHELL-EXECUTION: error executing the downloaded python script (url "http://192.168.88.88/ztp_python.py")
*Oct  9 19:40:42.317: [IOX DEBUG] Guestshell start API is being invoked

*Oct  9 19:40:42.317: [IOX DEBUG] provided idb is mgmt interface

*Oct  9 19:40:42.317: [IOX DEBUG] Setting up guestshell to use mgmt-intf

*Oct  9 19:40:42.317: [IOX DEBUG] Setting up chasfs for iox related activity

*Oct  9 19:40:42.317: [IOX DEBUG] Skipping pre-clean setup

*Oct  9 19:40:42.318: [IOX DEBUG] Skipping removal of previous iox feature configuration

*Oct  9 19:40:42.318: [IOX DEBUG] Skipping iox feature re-configuration

*Oct  9 19:40:42.318: [IOX DEBUG] Validating if CAF and ioxman are running

*Oct  9 19:40:42.318: [IOX DEBUG] CAF and ioxman are up and running

*Oct  9 19:40:42.318: [IOX DEBUG] Building the simple mgmt-intf enable command string

*Oct  9 19:40:42.318: [IOX DEBUG] Enable command is: request platform software iox-manager app-hosting guestshell enable

*Oct  9 19:40:42.318: [IOX DEBUG] Issuing guestshell enable command and waiting for it to be up

*Oct  9 19:40:42.318: [IOX DEBUG] Checking for guestshell mount path

*Oct  9 19:40:42.318: [IOX DEBUG] Validating if guestshell is ready for use

*Oct  9 19:40:42.319: [IOX DEBUG] Guestshell enabled successfully


 *** ZTP Day0 Python Script *** 




 *** Configuring... *** 


Traceback (most recent call last):
  File "/bootflash/downloaded_script.py", line 155, in <module>
    serials = get_serials()
  File "/bootflash/downloaded_script.py", line 13, in get_serials
    inventory = cli('show inventory | format')
  File "/usr/lib/python2.7/site-packages/cli/__init__.py", line 253, in cli
    response = pnp.listener.cli_exec_request(command)
  File "/usr/lib/python2.7/site-packages/pnp/_pnp.py", line 493, in cli_exec_request
    raise PnPSocketError()
pnp._pnp.PnPSocketError: SocketError: Socket /cisco/nginx_shared/pnp_python.sock not present. Make sure to enable http server


Loading http://192.168.88.88/ztp_python.py 
Loading http://192.168.88.88/ztp_python.py 
*Oct  9 19:40:48.657: SHELL-EXECUTION: error executing the python script: return code 1 (script itself stored in file "/bootflash/downloaded_script.py")
*Oct  9 19:40:48.657: SHELL-EXECUTION: error executing the downloaded python script (url "http://192.168.88.88/ztp_python.py")
*Oct  9 19:40:49.677: [IOX DEBUG] Guestshell start API is being invoked

*Oct  9 19:40:49.677: [IOX DEBUG] provided idb is mgmt interface

*Oct  9 19:40:49.677: [IOX DEBUG] Setting up guestshell to use mgmt-intf

*Oct  9 19:40:49.677: [IOX DEBUG] Setting up chasfs for iox related activity

*Oct  9 19:40:49.677: [IOX DEBUG] Skipping pre-clean setup

*Oct  9 19:40:49.677: [IOX DEBUG] Skipping removal of previous iox feature configuration

*Oct  9 19:40:49.678: [IOX DEBUG] Skipping iox feature re-configuration

*Oct  9 19:40:49.678: [IOX DEBUG] Validating if CAF and ioxman are running

*Oct  9 19:40:49.678: [IOX DEBUG] CAF and ioxman are up and running

*Oct  9 19:40:49.678: [IOX DEBUG] Building the simple mgmt-intf enable command string

*Oct  9 19:40:49.678: [IOX DEBUG] Enable command is: request platform software iox-manager app-hosting guestshell enable

*Oct  9 19:40:49.678: [IOX DEBUG] Issuing guestshell enable command and waiting for it to be up

*Oct  9 19:40:49.679: [IOX DEBUG] Checking for guestshell mount path

*Oct  9 19:40:49.679: [IOX DEBUG] Validating if guestshell is ready for use

*Oct  9 19:40:49.679: [IOX DEBUG] Guestshell enabled successfully

*Oct  9 19:42:06.749: %PNP-6-PNP_DISCOVERY_STOPPED: PnP Discovery stopped (Config Wizard)

 

 

  • Issue #2 - Part of the Python script is to upgrade the software using install mode. However after running the command and reload, the switch still boot using the old software. Hence the switch is stuck in an infinite loop whenever it boots up then reloads after the software install.

 

*Oct  9 19:45:51.916: %IOSXE-5-PLATFORM: Switch 1 R0/0: Oct  9 19:45:51 provision.sh: %INSTALL-5-OPERATION_START_INFO: Started install package flash:cat3k_caa-universalk9.16.06.04.SPA.bin
*Oct  9 19:45:54.595: %IOSXE-5-PLATFORM: Switch 1 R0/0: Oct  9 19:45:54 packtool.sh: %INSTALL-5-OPERATION_START_INFO: Started expand package flash:cat3k_caa-universalk9.16.06.04.SPA.bin
*Oct  9 19:46:19.447: %SYS-5-RELOAD: Reload requested by  on vty0. Reload Reason: Reload Command.
Loading http://192.168.88.88/ztp_python.py 
Loading http://192.168.88.88/ztp_python.py 
Chassis 1 reloading, reason - Reload command
Oct  9 19:47:00.715 RP0/0: %INSTALL-5-OPERATION_COMPLETED_INFO: Completed expand package flash:cat3k_caa-universalk9.16.06.04.SPA.bin 
Oct  9 19:47:03.021 RP0/0: %INSTALL-5-OPERATION_COMPLETED_INFO: Completed install package flash:cat3k_caa-universalk9.16.06.04.SPA.bin 
Oct  9 19:47:04.185 FP0/0: %PMAN-5-EXITACTION: Process manager is exiting: reload fp action requested 
Oct  9 19:47:09.295 RP0/0: %PMAN-5-EXITACTION: Process manager is exiting: process exit w
octeon_wdt: WDT device closed unexpectedly.  WDT will not stop!
systemd-shutdown[1]: Could not unmount /var/run/netns/guestshell: No such file or directory
reboot: Restarting system

 

Scenario 2: Config server connects to data Port Gi1/0/1

  • This scenario seems more stable to me, as the output is closer to what has been documented in Cisco Programmability Guide. The loading of Python script happens right after "System Configuration Dialog" and I don't see the PnPSocketError error message.
  • %INIT: waited 0 seconds for NVRAM to be available


         --- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]: 
Loading http://192.168.88.88/ztp_python.py 
Loading http://192.168.88.88/ztp_python.py The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
The process for the command is not responding or is otherwise unavailable
Guestshell enabled successfully


 *** ZTP Day0 Python Script ***
  • The only issue is that the Python script cannot communicate with the external REST API server to grab the configuration dynamically. It seems that there is no network connectivity from Guestshell to the external world. This issue does not happen when the config server connects via management port Gi0/0.

 

Traceback (most recent call last):
  File "/bootflash/downloaded_script.py", line 190, in <module>
    new_image = get_new_image_version(serials)
  File "/bootflash/downloaded_script.py", line 59, in get_new_image_version
    response = urllib2.urlopen(url)
  File "/usr/lib64/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib64/python2.7/urllib2.py", line 431, in open
    response = self._open(req, data)
  File "/usr/lib64/python2.7/urllib2.py", line 449, in _open
    '_open', req)
  File "/usr/lib64/python2.7/urllib2.py", line 409, in _call_chain
    result = func(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 1227, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib64/python2.7/urllib2.py", line 1197, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno 128] Network is unreachable>

 

[guestshell@guestshell ~]$ ifconfig
eth0      Link encap:Ethernet  HWaddr 52:54:DD:1D:B3:61  
          inet addr:192.168.30.2  Bcast:192.168.30.7  Mask:255.255.255.248
          inet6 addr: fe80::5054:ddff:fe1d:b361%lo/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1368 (1.3 KiB)  TX bytes:1144 (1.1 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1%1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:594 errors:0 dropped:0 overruns:0 frame:0
          TX packets:594 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:92014 (89.8 KiB)  TX bytes:92014 (89.8 KiB)

[guestshell@guestshell ~]$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.30.1    0.0.0.0         UG    1      0        0 eth0
192.168.30.0    *               255.255.255.248 U     0      0        0 eth0
[guestshell@guestshell ~]$ sudo ping 192.168.88.88

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

PING 192.168.88.88 (192.168.88.88) 56(84) bytes of data.
From 192.168.30.1 icmp_seq=1 Destination Net Unreachable
From 192.168.30.1 icmp_seq=2 Destination Net Unreachable
From 192.168.30.1 icmp_seq=3 Destination Net Unreachable
From 192.168.30.1 icmp_seq=4 Destination Net Unreachable
%Error opening tftp://192.168.88.88/router-confg (Timed out)^C
--- 192.168.88.88 ping statistics ---
21 packets transmitted, 0 received, +4 errors, 100% packet loss, time 20004ms

[guestshell@guestshell ~]$ 
[guestshell@guestshell ~]$ sudo ping 192.168.30.1
PING 192.168.30.1 (192.168.30.1) 56(84) bytes of data.
64 bytes from 192.168.30.1: icmp_seq=1 ttl=64 time=0.217 ms
64 bytes from 192.168.30.1: icmp_seq=2 ttl=64 time=0.180 ms
64 bytes from 192.168.30.1: icmp_seq=3 ttl=64 time=0.174 ms
64 bytes from 192.168.30.1: icmp_seq=4 ttl=64 time=0.161 ms
64 bytes from 192.168.30.1: icmp_seq=5 ttl=64 time=0.182 ms
64 bytes from 192.168.30.1: icmp_seq=6 ttl=64 time=0.159 ms
^C
--- 192.168.30.1 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 4999ms
rtt min/avg/max/mdev = 0.159/0.178/0.217/0.025 ms
[guestshell@guestshell ~]$

 

Appreciate your advice on this. Thanks in advanced.

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