Cisco C9300-48P-E Switch As an edge switch

[DAvelarNIC]

Hello,

I just purchased two Cisco C9300 switches because it was recommended as a replacement for the 3750 switches. However I cant seem to get the switches to pass traffic through from the ports. I get connectivity on the devices. I can connect from one switch to another but my devices that are plugged in never pick up an IP. I even tried assigning a static IP to the device and it will not give me any network access. Does anyone have a basic config they can post for the C9300? Or any suggestions? Im at a loss.

Thanks

[balaji.bandi]

Trying to understand the problem, Switch is  not picking up the IP address or Device not picking the ip which was connected to Cat 9300.

since you mentioned you are replacing 3750 with Cat 9300, that means you have already working config on 3750.

take that config make a simple config for Cat 9300, keep adding the config on top of it as per the requirement, ot post the config if you have issue we can asists here.

For me switch simpple config is :

switch name,

manangement IP

port channel config if you conected to L2 to uplink side, allowed rquired vlan

config access port required acess port vlan

ip helper address if you rquired for the device in svi 

[DAvelarNIC]

Hello and thank you for the response. The 9300 switch has an assigned management IP and I can connect to it from anywhere inside my network. I can also SSH from 9300 to any other switch so I know its passing traffic. Devices that I connect to the 9300 are unable to obtain a DHCP address and when assigned a static IP it will not recognize the network. Almost as if the switch ports are not allowing traffic. I do see a link light and the switch reports that the port is connected.

[balaji.bandi]

If your switch not configured any VLAN, default VLAN 1 ?

So we need more information - what is your DHCP Server IP address , your Cat 9300 configuration, and tell us where is the device connected which not received IP address

[DAvelarNIC]

A cisco 4510R is providing DHCP. The 4510R sits in the same subnet as the C9300. The C9300 switch has picked up the VLAN's via VTP domain. It is currently set as a client and has a recent update. The C9300 management IP is VLAN 254 so its IP is 10.10.254.1. I have tried two different devices connected to several of the switch ports with no luck.

The uplink port between the 9300 and the 3750 it is connected to is trunked. Do I need to change that configuration?

Thanks!

[balaji.bandi]

The uplink port between the 9300 and the 3750 it is connected to is trunked. Do I need to change that configuration?

May required - until we see config what i have requested we can not keep guess here what is configured.

[DAvelarNIC]

Here you go. Ports 1-47 are configured the same so I ommited them along with a few other lines. But the rest is there. Port 1/0/48 is the current uplink port. The port on the 3750 is configured the same except it has switchport trunk encapsulation dot 1q. I cant seem to configure that on the C9300.

Cisco C9300 configuration

Building configuration...

Current configuration : 25956 bytes
!
! Last configuration change at 13:54:40 PST-ST Thu Aug 8 2019 by cisco
! NVRAM config last updated at 13:44:04 PST-ST Thu Aug 8 2019 by cisco
!
version 16.9
no service pad
service timestamps debug datetime localtime show-timezone
service timestamps log datetime localtime show-timezone
service password-encryption
service call-home
no platform punt-keepalive disable-kernel-core
!
hostname S-SWITCH1
!
!
vrf definition Mgmt-vrf
!
address-family ipv4
exit-address-family
!
address-family ipv6
exit-address-family
!
logging buffered 8196
no logging console
enable secret 5
!
no aaa new-model
clock timezone PST -8 0
clock summer-time PST-ST recurring
switch 1 provision c9300-48p
!
!
!
!
call-home
! If contact email address in call-home is configured as sch-smart-licensing@cisco.com
! the email address configured in Cisco Smart License Portal will be used as contact email address to send SCH notifications.
contact-email-addr sch-smart-licensing@cisco.com
profile "CiscoTAC-1"
active
destination transport-method http
no destination transport-method email
ip routing
!
no ip domain lookup
!
!
!
login on-success log
!
!
!
!
!
!
table-map policed-dscp
map from 0 to 8
map from 10 to 8
map from 18 to 8
map from 24 to 8
map from 46 to 8
default copy
!
!
crypto pki trustpoint TP-self-signed-1661722870
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1661722870
revocation-check none
rsakeypair TP-self-signed-1661722870
!
crypto pki trustpoint TP-self-signed-627050240
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-627050240
revocation-check none
rsakeypair TP-self-signed-627050240
!
crypto pki trustpoint SLA-TrustPoint
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revocation-check crl
!
!
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quit
crypto pki certificate chain TP-self-signed-627050240
crypto pki certificate chain SLA-TrustPoint
certificate ca 01
30820321 30820209 A0030201 02020101 300D0609 2A864886 F70D0101 0B050030
32310E30 0C060355 040A1305 43697363 6F312030 1E060355 04031317 43697363
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526F6F74 20434130 82012230 0D06092A 864886F7 0D010101 05000382 010F0030
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D697DF7F 28
quit
!
!
!
diagnostic bootup level minimal
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
username cisco privilege 15 secret 5
!
redundancy
mode sso
!
!
!
!
!
transceiver type all
monitoring
!
!
class-map match-any AutoQos-4.0-Output-Multimedia-Conf-Queue
match dscp af41 af42 af43
match cos 4
class-map match-any system-cpp-police-topology-control
description Topology control
class-map match-any system-cpp-police-sw-forward
description Sw forwarding, L2 LVX data, LOGGING
class-map match-any AutoQos-4.0-Output-Bulk-Data-Queue
match dscp af11 af12 af13
match cos 1
class-map match-any system-cpp-default
description Inter FED, EWLC control, EWLC data
class-map match-any system-cpp-police-sys-data
description Learning cache ovfl, High Rate App, Exception, EGR Exception, NFL SAMPLED DATA, RPF Failed
class-map match-any AutoQos-4.0-Output-Priority-Queue
match dscp cs4 cs5 ef
match cos 5
class-map match-any system-cpp-police-punt-webauth
description Punt Webauth
class-map match-any AutoQos-4.0-Output-Multimedia-Strm-Queue
match dscp af31 af32 af33
class-map match-any system-cpp-police-l2lvx-control
description L2 LVX control packets
class-map match-any system-cpp-police-forus
description Forus Address resolution and Forus traffic
class-map match-any system-cpp-police-multicast-end-station
description MCAST END STATION
class-map match-any AutoQos-4.0-Voip-Data-CiscoPhone-Class
match cos 5
class-map match-any system-cpp-police-high-rate-app
description High Rate Applications
class-map match-any system-cpp-police-multicast
description Transit Traffic and MCAST Data
class-map match-any AutoQos-4.0-Voip-Signal-CiscoPhone-Class
match cos 3
class-map match-any system-cpp-police-l2-control
description L2 control
class-map match-all AUTOQOS_VOIP_DATA_CLASS
match ip dscp ef
class-map match-any system-cpp-police-dot1x-auth
description DOT1X Auth
class-map match-any system-cpp-police-data
description ICMP redirect, ICMP_GEN and BROADCAST
class-map match-all AUTOQOS_DEFAULT_CLASS
match access-group name AUTOQOS-ACL-DEFAULT
class-map match-all AUTOQOS_VOIP_SIGNAL_CLASS
match ip dscp cs3
class-map match-any system-cpp-police-stackwise-virt-control
description Stackwise Virtual
class-map match-any non-client-nrt-class
class-map match-any AutoQos-4.0-Default-Class
match access-group name AutoQos-4.0-Acl-Default
class-map match-any system-cpp-police-routing-control
description Routing control and Low Latency
class-map match-any system-cpp-police-protocol-snooping
description Protocol snooping
class-map match-any AutoQos-4.0-Output-Trans-Data-Queue
match dscp af21 af22 af23
match cos 2
class-map match-any system-cpp-police-dhcp-snooping
description DHCP snooping
class-map match-any system-cpp-police-system-critical
description System Critical and Gold Pkt
class-map match-any AutoQos-4.0-Output-Scavenger-Queue
match dscp cs1
class-map match-any AutoQos-4.0-Output-Control-Mgmt-Queue
match dscp cs2 cs3 cs6 cs7
match cos 3
!
policy-map AutoQos-4.0-Output-Policy
class AutoQos-4.0-Output-Priority-Queue
priority level 1 percent 30
class AutoQos-4.0-Output-Control-Mgmt-Queue
bandwidth remaining percent 10
queue-limit dscp cs2 percent 80
queue-limit dscp cs3 percent 90
queue-limit dscp cs6 percent 100
queue-limit dscp cs7 percent 100
queue-buffers ratio 10
class AutoQos-4.0-Output-Multimedia-Conf-Queue
bandwidth remaining percent 10
queue-buffers ratio 10
class AutoQos-4.0-Output-Trans-Data-Queue
bandwidth remaining percent 10
queue-buffers ratio 10
class AutoQos-4.0-Output-Bulk-Data-Queue
bandwidth remaining percent 4
queue-buffers ratio 10
class AutoQos-4.0-Output-Scavenger-Queue
bandwidth remaining percent 1
queue-buffers ratio 10
class AutoQos-4.0-Output-Multimedia-Strm-Queue
bandwidth remaining percent 10
queue-buffers ratio 10
class class-default
bandwidth remaining percent 25
queue-buffers ratio 25
policy-map AUTOQOS-SRND4-CISCOPHONE-POLICY
class AUTOQOS_VOIP_DATA_CLASS
set dscp ef
class AUTOQOS_VOIP_SIGNAL_CLASS
set dscp cs3
class AUTOQOS_DEFAULT_CLASS
set dscp default
policy-map system-cpp-policy
policy-map AutoQos-4.0-CiscoPhone-Input-Policy
class AutoQos-4.0-Voip-Data-CiscoPhone-Class
set dscp ef
police cir 128000 bc 8000
conform-action transmit
exceed-action set-dscp-transmit dscp table policed-dscp
class AutoQos-4.0-Voip-Signal-CiscoPhone-Class
set dscp cs3
police cir 32000 bc 8000
conform-action transmit
exceed-action set-dscp-transmit dscp table policed-dscp
class AutoQos-4.0-Default-Class
set dscp default
!
!
!
interface GigabitEthernet0/0
vrf forwarding Mgmt-vrf
no ip address
shutdown
speed 1000
negotiation auto
!
interface GigabitEthernet1/0/1
switchport access vlan 110
switchport mode access
switchport voice vlan 99
trust device cisco-phone
auto qos voip cisco-phone
spanning-tree portfast
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
!
!
interface GigabitEthernet1/0/48
description UPLINK
switchport mode trunk
!
interface GigabitEthernet1/1/1
switchport mode trunk
!
interface GigabitEthernet1/1/2
switchport mode trunk
!
interface GigabitEthernet1/1/3
switchport mode trunk
!
interface GigabitEthernet1/1/4
switchport mode trunk
!
interface TenGigabitEthernet1/1/1
!
interface TenGigabitEthernet1/1/2
!
interface TenGigabitEthernet1/1/3
!
interface TenGigabitEthernet1/1/4
!
interface TenGigabitEthernet1/1/5
!
interface TenGigabitEthernet1/1/6
!
interface TenGigabitEthernet1/1/7
!
interface TenGigabitEthernet1/1/8
!
interface FortyGigabitEthernet1/1/1
!
interface FortyGigabitEthernet1/1/2
!
interface TwentyFiveGigE1/1/1
!
interface TwentyFiveGigE1/1/2
!
interface Vlan1
no ip address
shutdown
!
interface Vlan254
ip address 10.10.254.61 255.255.255.0
!
ip default-gateway 10.10.254.1
ip forward-protocol nd
no ip http server
ip http authentication local
ip http secure-server
!
!
ip access-list extended AUTOQOS-ACL-DEFAULT
permit ip any any
ip access-list extended AutoQos-4.0-Acl-Default
permit ip any any
!
snmp-server community SNMP RO
!
control-plane
service-policy input system-cpp-policy
!
!
line con 0
exec-timeout 0 0
logging synchronous
login local
stopbits 1
line vty 0 4
exec-timeout 180 0
login local
length 0
line vty 5 15
no login
!
ntp server 10.10.254.1
!

[balaji.bandi]

If this CAT 9300 acting as L2 switch with below config ?

interface GigabitEthernet1/0/1
switchport access vlan 110
switchport mode access
switchport voice vlan 99
trust device cisco-phone
auto qos voip cisco-phone
spanning-tree portfast
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy

Where is your L3 interface for 110 VLAN ? is this on 3750 ? can you post that configuration.

as mentioned one of the pst you confirued IP address static ? what IP address is that, what is the Gateway for that IP address ?

[Arshad Safrulla]

provide a output of show vlan brief. if vlans are not created, can you create the VLANs in this switch. Eg:-

conf t

vlan 110

name DATA

vlan 90

name VOICE

!

[balaji.bandi]

I believe orginal poster mentioned this switch act VTP client, in the domain VTP Server exits for the VLAN ( agreed he is not demonstrated that VLAN information.)

[DAvelarNIC]

VLANS do exist. I can provide output but I have already verified they exist. From the switch I can reach any device except the ones connected to the actual switch.

[balaji.bandi]

Thank you for the confirmation, can you provide other information which was requested other post.

[DAvelarNIC]

Here is the VLAN brief information. This was pulled from the Catalyst 9300 so it appears as if VTP is working properly.

Thanks!

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/1/1, Gi1/1/2, Gi1/1/3
Gi1/1/4
3 guest_wireless active
4 WAE active
5 Cameras active
6 Projectors active
7 Printers active
8 Security active
10 WAN active
99 VOICE active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/4, Gi1/0/5, Gi1/0/6
Gi1/0/7, Gi1/0/8, Gi1/0/9
Gi1/0/10, Gi1/0/11, Gi1/0/12
Gi1/0/13, Gi1/0/14, Gi1/0/15
Gi1/0/16, Gi1/0/17, Gi1/0/18
Gi1/0/19, Gi1/0/20, Gi1/0/21
Gi1/0/22, Gi1/0/23, Gi1/0/24
Gi1/0/25, Gi1/0/26, Gi1/0/27
Gi1/0/28, Gi1/0/29, Gi1/0/30
Gi1/0/31, Gi1/0/32, Gi1/0/33

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
Gi1/0/34, Gi1/0/35, Gi1/0/36
Gi1/0/37, Gi1/0/38, Gi1/0/39
Gi1/0/40, Gi1/0/41, Gi1/0/42
Gi1/0/43, Gi1/0/44, Gi1/0/45
Gi1/0/46, Gi1/0/47
100 Student active
101 Upper_Grades active
110 TLC active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/4, Gi1/0/5, Gi1/0/6
Gi1/0/7, Gi1/0/8, Gi1/0/9
Gi1/0/10, Gi1/0/11, Gi1/0/12
Gi1/0/13, Gi1/0/14, Gi1/0/15
Gi1/0/16, Gi1/0/17, Gi1/0/18
Gi1/0/19, Gi1/0/20, Gi1/0/21
Gi1/0/22, Gi1/0/23, Gi1/0/24
Gi1/0/25, Gi1/0/26, Gi1/0/27
Gi1/0/28, Gi1/0/29, Gi1/0/30
Gi1/0/31, Gi1/0/32, Gi1/0/33
Gi1/0/34, Gi1/0/35, Gi1/0/36
Gi1/0/37, Gi1/0/38, Gi1/0/39
Gi1/0/40, Gi1/0/41, Gi1/0/42
Gi1/0/43, Gi1/0/44, Gi1/0/45
Gi1/0/46, Gi1/0/47

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
200 WirelessUser active
253 LWAP active
254 Mangement active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup

[Paul Chapman]

Hi DAvelarNIC -

Can you post the results of the following commands:

Catalyst 3750:

show int <uplink port name> trunk
show int <uplink port name> status
show spanning summary

Catalyst 9300:

show int gi1/0/48 trunk
show int gi1/0/48 status
show spanning summary
show spanning root

The Catalyst 9300 does not support ISL, therefore the "trunk encapsulation" command has been removed.

Best Regards,

PSC

[DAvelarNIC]

Hi Paul. Here you go. Thanks.

The switch is also showing it is in eval mode. Could this be affecting traffic?

Catalyst 3750

"sho int gi1/0/48 trunk"

Port Mode Encapsulation Status Native vlan
Gi1/0/48 on 802.1q trunking 1

Port Vlans allowed on trunk
Gi1/0/48 1-4094

Port Vlans allowed and active in management domain
Gi1/0/48 1,3-8,10,99-100,200,253-254

Port Vlans in spanning tree forwarding state and not pruned
Gi1/0/48 1,3-8,10,99-100,200,253-254

"sho int gi1/0/48 status"

Port Name Status Vlan Duplex Speed Type
Gi1/0/48 connected trunk a-full a-1000 10/100/1000BaseTX

"sho spanning-tree summary"

Switch is in pvst mode
Root bridge for: none
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
UplinkFast is disabled
BackboneFast is disabled
Configured Pathcost method used is short

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 0 0 0 2 2
VLAN0003 0 0 0 2 2
VLAN0004 0 0 0 2 2
VLAN0005 0 0 0 3 3
VLAN0006 0 0 0 2 2
VLAN0007 0 0 0 2 2
VLAN0008 0 0 0 2 2
VLAN0010 0 0 0 2 2
VLAN0099 0 0 0 17 17
VLAN0100 0 0 0 14 14

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0200 0 0 0 2 2
VLAN0253 0 0 0 4 4
VLAN0254 0 0 0 2 2
---------------------- -------- --------- -------- ---------- ----------
13 vlans 0 0 0 56 56

Catalyst 9300

"sho int trunk"
Port Mode Encapsulation Status Native vlan
Gi1/0/48 on 802.1q trunking 1

Port Vlans allowed on trunk
Gi1/0/48 1-4094

Port Vlans allowed and active in management domain
Gi1/0/48 1,3-8,10,99-101,110,200,253-254

Port Vlans in spanning tree forwarding state and not pruned
Gi1/0/48 1,3-8,10,99-101,110,200,253-254

"sho int status"
Port Name Status Vlan Duplex Speed Type
Gi1/0/48 UPLINK connected trunk a-full a-1000 10/100/1000BaseTX

"sho spanning-tree summary"

Switch is in pvst mode
Root bridge for: VLAN0101, VLAN0110
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
UplinkFast is disabled
BackboneFast is disabled
Configured Pathcost method used is short

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 0 0 0 1 1
VLAN0003 0 0 0 1 1
VLAN0004 0 0 0 1 1
VLAN0005 0 0 0 1 1
VLAN0006 0 0 0 1 1
VLAN0007 0 0 0 1 1
VLAN0008 0 0 0 1 1
VLAN0010 0 0 0 1 1

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0099 0 0 0 1 1
VLAN0100 0 0 0 1 1
VLAN0101 0 0 0 1 1
VLAN0110 0 0 0 1 1
VLAN0200 0 0 0 1 1
VLAN0253 0 0 0 1 1
VLAN0254 0 0 0 1 1
---------------------- -------- --------- -------- ---------- ----------
15 vlans 0 0 0 15 15

"sho spanning root"
Root Hello Max Fwd
Vlan Root ID Cost Time Age Dly Root Port
---------------- -------------------- --------- ----- --- --- ------------
VLAN0001 32769 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0003 32771 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0004 32772 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0005 32773 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0006 32774 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0007 32775 1caa.0732.7c80 27 2 20 15 Gi1/0/48
VLAN0008 32776 1caa.0732.7c80 27 2 20 15 Gi1/0/48
VLAN0010 32778 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0099 32867 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0100 32868 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0101 32869 c4c6.03df.a800 0 2 20 15
VLAN0110 32878 c4c6.03df.a800 0 2 20 15
VLAN0200 32968 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0253 33021 0022.5635.a700 16 2 20 15 Gi1/0/48
VLAN0254 33022 0022.5635.a700 16 2 20 15 Gi1/0/48