Cisco Nexus 3048TP-1GE vs 92348GC-X
The 92348GC-X is the modern Cloud Scale replacement for the aging Nexus 3048: it keeps 48 Gigabit copper ports but adds 25G and 100G uplinks, roughly 4x the switching capacity, and a much larger 40 MB buffer. For any 3048 refresh, the 92348GC-X is the clear successor.
Cisco Nexus 3048 (3048TP-1GE)
1RU Gigabit top-of-rack switch with 48x 10/100/1000 RJ-45 ports and 4x 10G SFP+ uplinks, 176 Gbps switching.
- 48x 10/100/1000BASE-T plus 4x 10GbE SFP+ uplinks
- 176 Gbps switching capacity, 132 Mpps forwarding
- 9 MB shared buffer, jumbo frames to 9216 bytes
- End-of-sale; no 25G or 100G uplink path
Cisco Nexus 92348GC-X
1RU Cloud Scale Gigabit ToR with 48x 100M/1G-T ports, 4x 1/10/25G SFP28 and 2x 40/100G QSFP28 uplinks.
- 48x 100M/1G-T plus 4x 1/10/25G SFP28 and 2x 40/100G QSFP28 uplinks
- 0.696 Tbps switching capacity, over 517 Mpps
- 40 MB shared buffer on Cisco Cloud Scale ASIC
- NX-OS with VXLAN, telemetry, and modern automation
Cisco Nexus 3048 (3048TP-1GE) vs Cisco Nexus 92348GC-X: spec comparison
| Spec | Cisco Nexus 3048 (3048TP-1GE) | Cisco Nexus 92348GC-X |
|---|---|---|
| Form factor | 1RU | 1RU |
| Copper host ports | 48x 10/100/1000BASE-T | 48x 100M/1G-T |
| SFP/SFP+ uplinks | 4x 10GbE SFP+ | 4x 1/10/25G SFP28 |
| QSFP uplinks | None | 2x 40/100G QSFP28 |
| Switching capacity | 176 Gbps | 0.696 Tbps |
| Forwarding rate | 132 Mpps | Over 517 Mpps |
| Shared buffer | 9 MB | 40 MB |
| ASIC | Merchant silicon (3000 series) | Cisco Cloud Scale |
| Software | NX-OS | NX-OS with VXLAN and streaming telemetry |
| Jumbo frames | Up to 9216 bytes | Up to 9216 bytes |
| Lifecycle status | End-of-sale | Current shipping switch |
Choose Cisco Nexus 3048 (3048TP-1GE) if
Keep the 3048TP-1GE only to extend an existing 1G management or low-traffic access row short-term. With 10G uplinks and a 9 MB buffer it cannot scale into 25G/100G fabrics.
Choose Cisco Nexus 92348GC-X if
Choose the 92348GC-X for any refresh that needs 1G copper density today but a path to 25G and 100G uplinks, plus the 40 MB buffer and Cloud Scale telemetry for modern data-center fabrics.
Verdict
Migrate to the 92348GC-X. It preserves your 48-port Gigabit copper footprint while adding 25G/100G uplinks, roughly four times the switching capacity, and a 40 MB Cloud Scale buffer. The 3048 is end-of-sale and limited to 10G uplinks, so keep it only as a temporary management switch.
Frequently asked questions
What replaces the Cisco Nexus 3048?
The Cisco Nexus 92348GC-X (N9K-C92348GC-X) is the current Gigabit copper top-of-rack switch and the natural successor, adding 25G and 100G uplinks and a 40 MB buffer.
Does the 92348GC-X still have 1G copper ports?
Yes. It provides 48x 100M/1G-T copper downlinks, so you keep Gigabit copper server and management connectivity while gaining modern SFP28 and QSFP28 uplinks.
How much faster is the 92348GC-X than the 3048?
Switching capacity rises from 176 Gbps on the 3048 to about 0.696 Tbps on the 92348GC-X, with forwarding climbing from 132 Mpps to over 517 Mpps.
Is the 92348GC-X a good management switch?
Yes. Cisco positions it for big-data Gigabit access and management-switch use cases, with local switching, 25G/100G uplinks, and Cloud Scale telemetry.
More Nexus comparisons
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