GSM7252PS

GSM7252PS

Port map as the library addresses these ports — schematic, not a faceplate layout.

A Fully Managed stackable switch: 52 ports, 48 of them PoE. It has the widest verified backend coverage in this fleet — SNMP, the XE FASTPATH web UI and the CLI all cross-verified against each other — and the equivalence tests lean on it hardest.

At a glance

Field	Value
Registry key	gsm7252ps
Product name	GSM7252PS
Class	fully managed
Ports	52
PoE (PSE) ports	48
Backends	SNMP, HTTP, SSH, TELNET
SNMP vendor subtree	1.3.6.1.4.1.4526.10
VLAN write dialect	Q-BRIDGE static PortLists (read-modify-write)
MAC/FDB table	yes

Live-verified at 10.1.5.22. Its seed, seed_gsm7252ps(), is the most exhaustively documented in the project: every read operation has at least one non-empty, non-vacuous example, so the parsers are exercised against real data rather than empty tables.

What works, over which protocol

Operation	What it does	SNMP	HTTP	SSH	TELNET
get_ports	Per-port link/admin status	✓	✓	✓	✓
get_stats	Per-port octet/packet counters	✓	✓	✓	✓
get_vlans	VLAN list with tagged/untagged members	✓	✓	✓	✓
get_pvids	Per-port PVID	✓	✓	✓	✓
get_lldp	LLDP neighbour table	✓	✓	✓	✓
get_macs	MAC/FDB forwarding table	✓	✓	✓	✓
get_poe	Per-port PoE status and power draw	✓	✓	✓	✓
get_sensors	Fan/PSU/temperature sensors	✓	✓	✓	✓
get_mgmt_ip	Management IP configuration	✓	✓	✓	✓
get_hostname	The switch’s host name	✓	— [gsm7252ps-1]	✓	✓
get_users	Local login accounts and their access level	— [gsm7252ps-2]	✓	✓	✓
get_services	Which management services (http/https/telnet/ssh) are enabled	— [gsm7252ps-3]	✓	✓	✓
get_syslog	Remote-logging configuration and collectors	✓	✓	✓	✓
nsdp_device	Full NSDP device record	— [gsm7252ps-4]	— [gsm7252ps-4]	— [gsm7252ps-4]	— [gsm7252ps-4]
set_port_enabled	Bring a port up or down	✓	✓	✓	✓
set_poe	Enable or disable PoE on a port	✓	✓	✓	✓
cycle_poe	Power-cycle a PoE port	✓	✓	✓	✓
clear_poe_fault	Clear a latched PoE fault	✓	✓	✓	✓
set_port_description	Set or clear a port’s description	✓	— [gsm7252ps-5]	✓	✓
set_port_speed	Force a port’s speed/duplex, or restore auto-negotiation	— [gsm7252ps-6]	— [gsm7252ps-7]	✓	✓
set_flow_control	Turn IEEE 802.3x flow control on or off for a port	— [gsm7252ps-8]	— [gsm7252ps-8]	✓	✓
set_pvid	Set a port’s PVID	✓	✓	✓	✓
set_vlan_membership	Set a port tagged/untagged/excluded on a VLAN	✓	✓	✓	✓
create_vlan	Create a VLAN	✓	— [gsm7252ps-9]	✓	✓
delete_vlan	Delete a VLAN	✓	— [gsm7252ps-10]	✓	✓
set_mgmt_ip	Set the management IP/mask/gateway	✓	✓	✓	✓
set_hostname	Set the switch’s host name	✓	— [gsm7252ps-11]	✓	✓
set_syslog_enabled	Turn remote logging on or off	✓	— [gsm7252ps-12]	✓	✓
add_syslog_collector	Add a remote syslog collector	— [gsm7252ps-13]	— [gsm7252ps-13]	✓	✓
remove_syslog_collector	Remove a remote syslog collector	✓	— [gsm7252ps-14]	✓	✓
upload_certificate	Upload an HTTPS certificate over the web UI	— [gsm7252ps-15]	— [gsm7252ps-16]	— [gsm7252ps-15]	— [gsm7252ps-15]
upload_certificate_scp	Deploy an HTTPS certificate via FASTPATH copy scp://	— [gsm7252ps-17]	— [gsm7252ps-17]	✓	✓

[gsm7252ps-1]

model ‘gsm7252ps’ web UI has no page for get_hostname (The switch’s host name)

[gsm7252ps-2]

get_users is served only over CONSOLE, HTTP, SSH, TELNET

[gsm7252ps-3]

get_services is served only over CONSOLE, HTTP, SSH, TELNET

[gsm7252ps-4] (1,2,3,4)

nsdp_device is served only over NSDP

[gsm7252ps-5]

model ‘gsm7252ps’ web UI has no page for set_port_description (Set or clear a port’s description)

[gsm7252ps-6]

set_port_speed is served only over CONSOLE, HTTP, SSH, TELNET

[gsm7252ps-7]

model ‘gsm7252ps’ web UI has no page for set_port_speed (Force a port’s speed/duplex, or restore auto-negotiation)

[gsm7252ps-8] (1,2)

set_flow_control is served only over CONSOLE, SSH, TELNET

[gsm7252ps-9]

model ‘gsm7252ps’ web UI carries no CSRF ‘hash’ token, which the HTTP create_vlan writer requires

[gsm7252ps-10]

model ‘gsm7252ps’ web UI carries no CSRF ‘hash’ token, which the HTTP delete_vlan writer requires

[gsm7252ps-11]

model ‘gsm7252ps’ web UI has no page for set_hostname (Set the switch’s host name)

[gsm7252ps-12]

set_syslog_enabled is served only over CONSOLE, SNMP, SSH, TELNET

[gsm7252ps-13] (1,2)

add_syslog_collector is served only over CONSOLE, SSH, TELNET

[gsm7252ps-14]

model ‘gsm7252ps’ web UI has no page for remove_syslog_collector (Remove a remote syslog collector)

[gsm7252ps-15] (1,2,3)

upload_certificate is served only over HTTP

[gsm7252ps-16]

this model takes a certificate by SCP file-copy to the switch (copy scp://), not over the web UI – use upload_certificate_scp

[gsm7252ps-17] (1,2)

upload_certificate_scp is served only over CONSOLE, SSH, TELNET

Measured behaviour

Q-BRIDGE really is writable here — and that is verified, not assumed. A walk of the vendor switchport table 1.3.6.1.4.1.4526.10.1.2.8.37 returns zero rows on this switch, versus 1520 on the M4300-24X, so the standard read-modify-write dialect is not merely the one that happened to work first: it is the only membership mechanism this agent publishes.

A single combined PDU applies correctly. Unlike the S3300, this firmware honours egress and untagged varbinds travelling together, so this model keeps the atomic write rather than the split-PDU workaround.

Its VLAN PortList is 79 bytes wide — a property of the device, not derivable from its 52 ports. The mock seeds that measured width instead of computing it, which is what makes the wire-conformance test meaningful.

“It refuses PoE writes over HTTP” was our bug, not the firmware’s. The web form needs a list-navigation field (v_1_1_1) that the writer was not sending; with it, PoE writes apply cleanly. See HTTP web UI.

Protocols

• SNMP — vendor subtree 4526.10, the default backend.

• HTTP web UI — the XE_FASTPATH dialect, CHEETAH_FORM login.

• FASTPATH CLI — SSH or telnet, and SCP certificate deployment.